COMPMID-1809: Remove padding in NEGEMMConvolutionLayer 64-bit path.

Change-Id: I1806591a2c73a1f057f13d8c6107d7b9796a82c8
Reviewed-on: https://review.mlplatform.org/370
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Michalis Spyrou <michalis.spyrou@arm.com>
diff --git a/tests/validation/NEON/ActivationLayer.cpp b/tests/validation/NEON/ActivationLayer.cpp
index cd35504..589b53f 100644
--- a/tests/validation/NEON/ActivationLayer.cpp
+++ b/tests/validation/NEON/ActivationLayer.cpp
@@ -145,12 +145,10 @@
     }
 
     // Validate padding
-    const PaddingSize padding = PaddingCalculator(shape.x(), 16).required_padding();
-    validate(src.info()->padding(), padding);
-
+    validate(src.info()->padding(), PaddingSize());
     if(!in_place)
     {
-        validate(dst.info()->padding(), padding);
+        validate(dst.info()->padding(), PaddingSize());
     }
 }