COMPMID-3393: Minor tweaks on memory injection interface

* Avoid the need to overload workspace() everytime
* Remove the Layer suffix from the operators
* Clean interface by removing default arguments when unsupported

Signed-off-by: Georgios Pinitas <georgios.pinitas@arm.com>
Change-Id: I7710ecd485cae13e9c2d45216debbd8103bc5a0f
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/3610
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Michalis Spyrou <michalis.spyrou@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
diff --git a/arm_compute/runtime/CL/functions/CLActivationLayer.h b/arm_compute/runtime/CL/functions/CLActivationLayer.h
index d7cc67a..632487c 100644
--- a/arm_compute/runtime/CL/functions/CLActivationLayer.h
+++ b/arm_compute/runtime/CL/functions/CLActivationLayer.h
@@ -98,7 +98,7 @@
 namespace experimental
 {
 /** Basic function to run @ref CLActivationLayerKernel */
-class CLActivationLayer : public ICLOperator
+class CLActivation : public ICLOperator
 {
 public:
     /** Set the input and output tensor.
@@ -120,9 +120,6 @@
      * @return a status
      */
     static Status validate(const ITensorInfo *input, const ITensorInfo *output, const ActivationLayerInfo &act_info);
-
-    // Inherited methods overridden:
-    MemoryRequirements workspace() const override;
 };
 } // namespace experimental
 } // namespace arm_compute
diff --git a/arm_compute/runtime/CL/functions/CLConcatenateLayer.h b/arm_compute/runtime/CL/functions/CLConcatenateLayer.h
index 4e8a95b..99a2053 100644
--- a/arm_compute/runtime/CL/functions/CLConcatenateLayer.h
+++ b/arm_compute/runtime/CL/functions/CLConcatenateLayer.h
@@ -113,11 +113,11 @@
  * -# @ref CLDepthConcatenateLayerKernel (if underlying concatenation axis is 2).
  * -# @ref CLBatchConcatenateLayerKernel (if underlying concatenation axis is 3).
  */
-class CLConcatenateLayer : public ICLOperator
+class CLConcatenation : public ICLOperator
 {
 public:
     /** Default constructor */
-    CLConcatenateLayer();
+    CLConcatenation();
     /** Initialise the kernel's inputs vector and output.
      *
      * @note Input and output tensor dimensions preconditions defer depending on the concatenation axis.
@@ -144,7 +144,6 @@
     static Status validate(const std::vector<const ITensorInfo *> &inputs_vector, const ITensorInfo *output, size_t axis);
 
     // Inherited methods overridden:
-    MemoryRequirements workspace() const override;
     void run(InputTensorMap inputs, OutputTensorMap outputs, OperatorTensorMap workspace) override;
 
 private:
diff --git a/arm_compute/runtime/CL/functions/CLElementWiseUnaryLayer.h b/arm_compute/runtime/CL/functions/CLElementWiseUnaryLayer.h
index e4268c1..5208bfe 100644
--- a/arm_compute/runtime/CL/functions/CLElementWiseUnaryLayer.h
+++ b/arm_compute/runtime/CL/functions/CLElementWiseUnaryLayer.h
@@ -356,7 +356,7 @@
 namespace experimental
 {
 /** Basic function to perform inverse square root on an input tensor. */
-class CLRsqrtLayer : public ICLOperator
+class CLRsqrt : public ICLOperator
 {
 public:
     /** Initialize the function
@@ -380,13 +380,10 @@
      * @return a status
      */
     static Status validate(const ITensorInfo *input, const ITensorInfo *output);
-
-    // Inherited methods overridden:
-    MemoryRequirements workspace() const override;
 };
 
 /** Basic function to perform exponential on an input tensor. */
-class CLExpLayer : public ICLOperator
+class CLExp : public ICLOperator
 {
 public:
     /** Initialize the function
@@ -410,13 +407,10 @@
      * @return a status
      */
     static Status validate(const ITensorInfo *input, const ITensorInfo *output);
-
-    // Inherited methods overridden:
-    MemoryRequirements workspace() const override;
 };
 
 /** Basic function to negate an input tensor. */
-class CLNegLayer : public ICLOperator
+class CLNeg : public ICLOperator
 {
 public:
     /** Initialize the function
@@ -440,13 +434,10 @@
      * @return a status
      */
     static Status validate(const ITensorInfo *input, const ITensorInfo *output);
-
-    // Inherited methods overridden:
-    MemoryRequirements workspace() const override;
 };
 
 /** Basic function to calculate sine of an input tensor. */
-class CLSinLayer : public ICLOperator
+class CLSin : public ICLOperator
 {
 public:
     /** Initialize the function
@@ -470,13 +461,10 @@
      * @return a status
      */
     static Status validate(const ITensorInfo *input, const ITensorInfo *output);
-
-    // Inherited methods overridden:
-    MemoryRequirements workspace() const override;
 };
 
 /** Basic function to perform elementwise log on an input tensor. */
-class CLLogLayer : public ICLOperator
+class CLLog : public ICLOperator
 {
 public:
     /** Initialize the function
@@ -500,13 +488,10 @@
      * @return a status
      */
     static Status validate(const ITensorInfo *input, const ITensorInfo *output);
-
-    // Inherited methods overridden:
-    MemoryRequirements workspace() const override;
 };
 
 /** Basic function to get the absolute value of an input tensor. */
-class CLAbsLayer : public ICLOperator
+class CLAbs : public ICLOperator
 {
 public:
     /** Initialize the function
@@ -530,13 +515,10 @@
      * @return a status
      */
     static Status validate(const ITensorInfo *input, const ITensorInfo *output);
-
-    // Inherited methods overridden:
-    MemoryRequirements workspace() const override;
 };
 
 /** Basic function to get the round (to the nearest even) value of an input tensor. */
-class CLRoundLayer : public ICLOperator
+class CLRound : public ICLOperator
 {
 public:
     /** Initialize the function
@@ -560,9 +542,6 @@
      * @return a status
      */
     static Status validate(const ITensorInfo *input, const ITensorInfo *output);
-
-    // Inherited methods overridden:
-    MemoryRequirements workspace() const override;
 };
 } // namespace experimental
 } // namespace arm_compute
diff --git a/arm_compute/runtime/CL/functions/CLReshapeLayer.h b/arm_compute/runtime/CL/functions/CLReshapeLayer.h
index 175fbff..7fc6c3b 100644
--- a/arm_compute/runtime/CL/functions/CLReshapeLayer.h
+++ b/arm_compute/runtime/CL/functions/CLReshapeLayer.h
@@ -81,7 +81,7 @@
 namespace experimental
 {
 /** Basic function to run @ref CLReshapeLayerKernel */
-class CLReshapeLayer : public ICLOperator
+class CLReshape : public ICLOperator
 {
 public:
     /** Initialise the kernel's inputs and outputs
@@ -100,10 +100,7 @@
      * @return a status
      */
     static Status validate(const ITensorInfo *input, const ITensorInfo *output);
-
-    // Inherited methods overridden:
-    MemoryRequirements workspace() const override;
 };
 } // namespace experimental
-}
+} // namespace arm_compute
 #endif /*ARM_COMPUTE_CLRESHAPELAYER_H */
diff --git a/arm_compute/runtime/CL/functions/CLSlice.h b/arm_compute/runtime/CL/functions/CLSlice.h
index 6fe62ac..23c398c 100644
--- a/arm_compute/runtime/CL/functions/CLSlice.h
+++ b/arm_compute/runtime/CL/functions/CLSlice.h
@@ -68,9 +68,6 @@
      * @return A status
      */
     static Status validate(const ITensorInfo *input, const ITensorInfo *output, const Coordinates &starts, const Coordinates &ends);
-
-    // Inherited methods overridden:
-    MemoryRequirements workspace() const override;
 };
 } // namespace experimental
 
diff --git a/arm_compute/runtime/CL/functions/CLStridedSlice.h b/arm_compute/runtime/CL/functions/CLStridedSlice.h
index 394d8c4..fdbef81 100644
--- a/arm_compute/runtime/CL/functions/CLStridedSlice.h
+++ b/arm_compute/runtime/CL/functions/CLStridedSlice.h
@@ -156,9 +156,6 @@
     static Status validate(const ITensorInfo *input, const ITensorInfo *output,
                            const Coordinates &starts, const Coordinates &ends, const BiStrides &strides,
                            int32_t begin_mask = 0, int32_t end_mask = 0, int32_t shrink_axis_mask = 0);
-
-    // Inherited methods overridden:
-    MemoryRequirements workspace() const override;
 };
 } // namespace experimental
 } // namespace arm_compute