[FlowSensitive] Stop including llvm/ADT/Any.h (NFC)

DataflowAnalysis.h doesn't use Any.

Author: kazutakahirata

clang/include/clang/Analysis/FlowSensitive/DataflowAnalysis.h

@@ -28,7 +28,6 @@
 #include "clang/Analysis/FlowSensitive/MatchSwitch.h"
 #include "clang/Analysis/FlowSensitive/TypeErasedDataflowAnalysis.h"
 #include "clang/Analysis/FlowSensitive/WatchedLiteralsSolver.h"
-#include "llvm/ADT/Any.h"
 #include "llvm/ADT/STLExtras.h"
 #include "llvm/ADT/STLFunctionalExtras.h"
 #include "llvm/ADT/SmallVector.h"