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/Support/MemoryBuffer.cpp

@@ -94,7 +94,7 @@ public:
     return MemoryBuffer_Malloc;
   }
 };
-} // namespace
+}
 
 static ErrorOr<std::unique_ptr<MemoryBuffer>>
 getFileAux(const Twine &Filename, int64_t FileSize, uint64_t MapSize, 
@@ -220,7 +220,7 @@ public:
     return MemoryBuffer_MMap;
   }
 };
-} // namespace
+}
 
 static ErrorOr<std::unique_ptr<MemoryBuffer>>
 getMemoryBufferForStream(int FD, const Twine &BufferName) {