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/Analysis/LazyValueInfo.cpp b/llvm/lib/Analysis/LazyValueInfo.cpp
index f421d28..a6ae7f2 100644
--- a/llvm/lib/Analysis/LazyValueInfo.cpp
+++ b/llvm/lib/Analysis/LazyValueInfo.cpp
@@ -286,7 +286,7 @@
               << Val.getConstantRange().getUpper() << '>';
   return OS << "constant<" << *Val.getConstant() << '>';
 }
-} // namespace llvm
+}
 
 //===----------------------------------------------------------------------===//
 //                          LazyValueInfoCache Decl
@@ -306,7 +306,7 @@
       deleted();
     }
   };
-} // namespace
+}
 
 namespace { 
   /// This is the cache kept by LazyValueInfo which