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/CodeGen/PeepholeOptimizer.cpp

@@ -293,7 +293,7 @@ namespace {
     /// register of the last source.
     unsigned getReg() const { return Reg; }
   };
-} // namespace
+}
 
 char PeepholeOptimizer::ID = 0;
 char &llvm::PeepholeOptimizerID = PeepholeOptimizer::ID;