COMPMID-3532: Align data type support between doxygen and implementation - CL

Also removes some unused code.

Change-Id: I85687c40999c3cdf9e6fccfcd020b0901a9515fe
Signed-off-by: Michele Di Giorgio <michele.digiorgio@arm.com>
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/3581
Reviewed-by: Georgios Pinitas <georgios.pinitas@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>
diff --git a/src/core/CL/cl_kernels/fill_border.cl b/src/core/CL/cl_kernels/fill_border.cl
index 5b3266c..5775d89 100644
--- a/src/core/CL/cl_kernels/fill_border.cl
+++ b/src/core/CL/cl_kernels/fill_border.cl
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016-2018 Arm Limited.
+ * Copyright (c) 2016-2020 Arm Limited.
  *
  * SPDX-License-Identifier: MIT
  *
@@ -31,7 +31,7 @@
  * @attention  The border size for top, bottom, left, right needs to be passed at the compile time.
  * e.g. --DBORDER_SIZE_TOP=0 -DBORDER_SIZE_BOTTOM=2 -DBORDER_SIZE_LEFT=0 -DBORDER_SIZE_RIGHT=2
  *
- * @param[in,out] buf_ptr                           Pointer to the source image. Supported data types: U8/U16/S16/U32/S32/F16/F32
+ * @param[in,out] buf_ptr                           Pointer to the source image. Supported data types: All
  * @param[in]     buf_stride_x                      Stride of the source image in X dimension (in bytes)
  * @param[in]     buf_step_x                        buf_stride_x * number of elements along X processed per workitem(in bytes)
  * @param[in]     buf_stride_y                      Stride of the source image in Y dimension (in bytes)
@@ -106,7 +106,7 @@
  * @attention  The border size for top, bottom, left, right needs to be passed at the compile time.
  * e.g. --DBORDER_SIZE_TOP=0 -DBORDER_SIZE_BOTTOM=2 -DBORDER_SIZE_LEFT=0 -DBORDER_SIZE_RIGHT=2
  *
- * @param[out] buf_ptr                           Pointer to the source image. Supported data types: U8/U16/S16/U32/S32/F16/F32
+ * @param[out] buf_ptr                           Pointer to the source image. Supported data types: All
  * @param[in]  buf_stride_x                      Stride of the source image in X dimension (in bytes)
  * @param[in]  buf_step_x                        buf_stride_x * number of elements along X processed per workitem(in bytes)
  * @param[in]  buf_stride_y                      Stride of the source image in Y dimension (in bytes)