Revert "Fold PAD into Pooling2d"

This reverts commit 51ce7d487c761358de105f82ff90553570aedac0.

Reason for revert: https://jira.arm.com/browse/IVGCVSW-5798 LargeGraph_TENSOR_FLOAT32 CTS tests failures

Change-Id: Ib031a47f605340b2202ecf074ce96a8b54c51075
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 25d9472..4e75c28 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -483,7 +483,7 @@
     src/armnn/optimizations/ConvertConstants.hpp
     src/armnn/optimizations/ConvertFp32NetworkToBf16.hpp
     src/armnn/optimizations/ConvertFp32NetworkToFp16.hpp
-    src/armnn/optimizations/FoldPadIntoLayer2d.hpp
+    src/armnn/optimizations/FoldPadIntoConvolution2d.hpp
     src/armnn/optimizations/MovePermuteUp.hpp
     src/armnn/optimizations/MoveTransposeUp.hpp
     src/armnn/optimizations/Optimization.hpp