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/core/NEON/kernels/NEGEMMMatrixAdditionKernel.h b/arm_compute/core/NEON/kernels/NEGEMMMatrixAdditionKernel.h
index 5e4f8b7..1a23593 100644
--- a/arm_compute/core/NEON/kernels/NEGEMMMatrixAdditionKernel.h
+++ b/arm_compute/core/NEON/kernels/NEGEMMMatrixAdditionKernel.h
@@ -59,7 +59,7 @@
      *
      * @note The input and output tensor must have the same dimensions
      *
-     * @param[in]      input  Input tensor (Matrix C). Data types supported: QS8/QS16/F16/F32
+     * @param[in]      input  Input tensor (Matrix C). Data types supported: F16/F32
      * @param[in, out] output Output tensor. If this kernel is used to finalize the GEMM result, output contains the result obtained by the kernel @ref NEGEMMMatrixMultiplyKernel. Data type supported: the same as @p input.
      * @param[in]      beta   Weight of matrix C
      */
@@ -71,7 +71,7 @@
 private:
     /** Common signature for all the matrix addition functions
      *
-     * @param[in]  input  An input tensor. Data types supported: QS8/QS16/F16/F32
+     * @param[in]  input  An input tensor. Data types supported: F16/F32
      * @param[out] output The output tensor. Data type supported: same as @p input
      * @param[in]  window Region on which to execute the kernel.
      * @param[in]  beta   Weight of matrix C