Remove stale header file.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162341 91177308-0d34-0410-b5e6-96231b3b80d8

include/clang/StaticAnalyzer/Checkers/DereferenceChecker.h

@@ -1,35 +0,0 @@
-//== NullDerefChecker.h - Null dereference checker --------------*- C++ -*--==//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This defines NullDerefChecker and UndefDerefChecker, two builtin checks
-// in ExprEngine that check for null and undefined pointers at loads
-// and stores.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef LLVM_CLANG_GR_DEREFCHECKER
-#define LLVM_CLANG_GR_DEREFCHECKER
-
-#include <utility>
-
-namespace clang {
-
-namespace ento {
-
-class ExprEngine;
-class ExplodedNode;
-
-std::pair<ExplodedNode * const *, ExplodedNode * const *>
-GetImplicitNullDereferences(ExprEngine &Eng);
-
-} // end GR namespace
-
-} // end clang namespace
-
-#endif

lib/StaticAnalyzer/Checkers/ObjCAtSyncChecker.cpp

@@ -18,7 +18,6 @@
 #include "clang/StaticAnalyzer/Core/CheckerManager.h"
 #include "clang/StaticAnalyzer/Core/PathSensitive/CheckerContext.h"
 #include "clang/StaticAnalyzer/Core/BugReporter/BugType.h"
-#include "clang/StaticAnalyzer/Checkers/DereferenceChecker.h"
 #include "clang/StaticAnalyzer/Core/PathSensitive/ExprEngine.h"
 
 using namespace clang;