Revert r240270 ("Fixed/added namespace ending comments using clang-tidy").

llvm-svn: 240353

clang/lib/CodeGen/CoverageMappingGen.cpp

@@ -884,7 +884,7 @@ struct CounterCoverageMappingBuilder
     // propagate counts into them.
   }
 };
-} // namespace
+}
 
 static bool isMachO(const CodeGenModule &CGM) {
   return CGM.getTarget().getTriple().isOSBinFormatMachO();