Remove stale/solved TODOs

Change-Id: I5c440f4c6ca4186adcfa926e6b7d924086671f29
Signed-off-by: Michele Di Giorgio <michele.digiorgio@arm.com>
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/5520
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Manuel Bottini <manuel.bottini@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
diff --git a/src/core/CL/cl_kernels/softmax_layer.cl b/src/core/CL/cl_kernels/softmax_layer.cl
index 01f5de4..4d2d89d 100644
--- a/src/core/CL/cl_kernels/softmax_layer.cl
+++ b/src/core/CL/cl_kernels/softmax_layer.cl
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2020 Arm Limited.
+ * Copyright (c) 2017-2021 Arm Limited.
  *
  * SPDX-License-Identifier: MIT
  *
@@ -306,7 +306,6 @@
     }
 #ifdef NON_MULTIPLE_OF_GRID_SIZE
     // How many work-items needed to complete the computation.
-    //TODO: Optimize this calculation (avoid %).
     int boundary_workitems = (SRC_WIDTH % (GRID_SIZE * VECTOR_SIZE)) / VECTOR_SIZE;
     if(lid < boundary_workitems)
     {
@@ -417,7 +416,6 @@
         sum1D += data;
     }
 #ifdef NON_MULTIPLE_OF_GRID_SIZE
-    //TODO: Optimize the calculation (avoid %).
     boundary_workitems = (SRC_WIDTH % (GRID_SIZE * VECTOR_SIZE)) / VECTOR_SIZE;
     if(lid < boundary_workitems)
     {