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

lib/IR/Operator.cpp

@@ -41,4 +41,4 @@ bool GEPOperator::accumulateConstantOffset(const DataLayout &DL,
   }
   return true;
 }
-} // namespace llvm
+}