COMPMID-970 : Remove QS8 / QS16 support

Removed fixed point related code.

Change-Id: I487acf138dace3b0450e0d72ca7071eaec254566
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/137678
Tested-by: Jenkins <bsgcomp@arm.com>
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>
diff --git a/arm_compute/runtime/NEON/functions/NEPixelWiseMultiplication.h b/arm_compute/runtime/NEON/functions/NEPixelWiseMultiplication.h
index ba96ae6..371bb2e 100644
--- a/arm_compute/runtime/NEON/functions/NEPixelWiseMultiplication.h
+++ b/arm_compute/runtime/NEON/functions/NEPixelWiseMultiplication.h
@@ -37,22 +37,22 @@
 public:
     /** Initialise the kernel's inputs, output and convertion policy.
      *
-     * @param[in, out] input1          An input tensor. Data types supported: U8/QS8/S16/F16/F32.
+     * @param[in, out] input1          An input tensor. Data types supported: U8/S16/F16/F32.
      *                                 The input tensor is [in, out] because its TensorInfo might be modified inside the kernel in case of broadcasting of dimension 0.
      * @param[in, out] input2          An input tensor. Data types supported: same as @p input1.
      *                                 The input tensor is [in, out] because its TensorInfo might be modified inside the kernel in case of broadcasting of dimension 0.
-     * @param[out]     output          Output tensor. Data types supported: U8/QS8/S16/F16/F32.
+     * @param[out]     output          Output tensor. Data types supported: U8/S16/F16/F32.
      * @param[in]      scale           Scale to apply after multiplication.
-     *                                 Scale must be positive and its value must be either 1/255 or 1/2^n where n is between 0 and 15. For QS8 and QS16 scale must be 1.
+     *                                 Scale must be positive and its value must be either 1/255 or 1/2^n where n is between 0 and 15.
      * @param[in]      overflow_policy Overflow policy.
      * @param[in]      rounding_policy Rounding policy.
      */
     void configure(ITensor *input1, ITensor *input2, ITensor *output, float scale, ConvertPolicy overflow_policy, RoundingPolicy rounding_policy);
     /** Static function to check if given info will lead to a valid configuration of @ref NEPixelWiseMultiplication
      *
-     * @param[in] input1          First tensor info input. Data types supported: U8/QS8/S16/F16/F32.
-     * @param[in] input2          Second tensor info input. Data types supported: U8/QS8/S16/F16/F32.
-     * @param[in] output          Output tensor info. Data types supported: U8/QS8/S16/F16/F32.
+     * @param[in] input1          First tensor info input. Data types supported: U8/S16/F16/F32.
+     * @param[in] input2          Second tensor info input. Data types supported: U8/S16/F16/F32.
+     * @param[in] output          Output tensor info. Data types supported: U8/S16/F16/F32.
      * @param[in] scale           Scale to apply after multiplication. Must be positive.
      * @param[in] overflow_policy Overflow policy.
      * @param[in] rounding_policy Rounding policy.