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/GCOV.cpp

@@ -496,7 +496,7 @@ public:
     OS << format("%5u:", LineNum) << Line << "\n";
   }
 };
-} // namespace
+}
 
 /// Convert a path to a gcov filename. If PreservePaths is true, this
 /// translates "/" to "#", ".." to "^", and drops ".", to match gcov.