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

llvm-svn: 240353
diff --git a/clang/tools/libclang/Indexing.cpp b/clang/tools/libclang/Indexing.cpp
index c1e3378..e356400 100644
--- a/clang/tools/libclang/Indexing.cpp
+++ b/clang/tools/libclang/Indexing.cpp
@@ -141,7 +141,7 @@
       return LHS == RHS;
     }
   };
-} // namespace llvm
+}
 
 namespace {