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

llvm-svn: 240353
diff --git a/clang/lib/AST/ItaniumMangle.cpp b/clang/lib/AST/ItaniumMangle.cpp
index 38c3ccb..e5a31f8 100644
--- a/clang/lib/AST/ItaniumMangle.cpp
+++ b/clang/lib/AST/ItaniumMangle.cpp
@@ -408,7 +408,7 @@
   void mangleFunctionParam(const ParmVarDecl *parm);
 };
 
-} // namespace
+}
 
 bool ItaniumMangleContextImpl::shouldMangleCXXName(const NamedDecl *D) {
   const FunctionDecl *FD = dyn_cast<FunctionDecl>(D);