Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

Apparently, the style needs to be agreed upon first.

llvm-svn: 240390
diff --git a/llvm/lib/CodeGen/MachineModuleInfo.cpp b/llvm/lib/CodeGen/MachineModuleInfo.cpp
index a303426..5c544f1 100644
--- a/llvm/lib/CodeGen/MachineModuleInfo.cpp
+++ b/llvm/lib/CodeGen/MachineModuleInfo.cpp
@@ -97,7 +97,7 @@
   void UpdateForDeletedBlock(BasicBlock *BB);
   void UpdateForRAUWBlock(BasicBlock *Old, BasicBlock *New);
 };
-} // namespace llvm
+}
 
 MCSymbol *MMIAddrLabelMap::getAddrLabelSymbol(BasicBlock *BB) {
   assert(BB->hasAddressTaken() &&