Remove usage of valid window region in NHWC CPU kernels - Part2

Remove set_valid_region methods from all NHWC CPU ML functions /
operators / kernels

Resolves COMPMID-4152 (2/2)

Change-Id: If9725e9c5b0213b87db96675e81b7fb724970b98
Signed-off-by: SiCongLi <sicong.li@arm.com>
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/5203
Reviewed-by: Georgios Pinitas <georgios.pinitas@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>
diff --git a/src/core/cpu/kernels/CpuConcatenateDepthKernel.cpp b/src/core/cpu/kernels/CpuConcatenateDepthKernel.cpp
index f64c282..d8eed44 100644
--- a/src/core/cpu/kernels/CpuConcatenateDepthKernel.cpp
+++ b/src/core/cpu/kernels/CpuConcatenateDepthKernel.cpp
@@ -179,11 +179,7 @@
     }
 
     // Configure kernel window
-    Window      win = calculate_max_window(*dst, Steps());
-    Coordinates coord;
-    coord.set_num_dimensions(dst->num_dimensions());
-
-    dst->set_valid_region(ValidRegion(coord, dst->tensor_shape()));
+    Window win = calculate_max_window(*dst, Steps());
     ICpuKernel::configure(win);
 }