Thread safety: removing unnecessary import

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139425 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/ThreadSafety.cpp b/lib/Analysis/ThreadSafety.cpp
index cefedfd..78163d4 100644
--- a/lib/Analysis/ThreadSafety.cpp
+++ b/lib/Analysis/ThreadSafety.cpp
@@ -15,7 +15,6 @@
 //===----------------------------------------------------------------------===//
 
 #include "clang/Analysis/Analyses/ThreadSafety.h"
-#include "clang/Sema/SemaInternal.h"
 #include "clang/Basic/SourceManager.h"
 #include "clang/Basic/SourceLocation.h"
 #include "clang/AST/DeclCXX.h"