Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

Apparently, the style needs to be agreed upon first.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240390 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/IR/DataLayout.h

@@ -542,6 +542,6 @@ inline uint64_t DataLayout::getTypeSizeInBits(Type *Ty) const {
   }
 }
 
-} // namespace llvm
+} // End llvm namespace
 
 #endif