Remove extra namespace specifier.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121334 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/libclang/CXCursor.cpp b/tools/libclang/CXCursor.cpp
index 744eb2e..25126bf 100644
--- a/tools/libclang/CXCursor.cpp
+++ b/tools/libclang/CXCursor.cpp
@@ -506,7 +506,7 @@
   return (CXCursorSet_Impl*) set;
 }
 namespace llvm {
-template<> struct llvm::DenseMapInfo<CXCursor> {
+template<> struct DenseMapInfo<CXCursor> {
 public:
   static inline CXCursor getEmptyKey() {
     return MakeCXCursorInvalid(CXCursor_InvalidFile);