[NFC] Remove redundant includes for llvm/ADT/Optional.h.

Author: varungandhi-apple

include/swift/Basic/SupplementaryOutputPaths.h

@@ -14,7 +14,6 @@
 #define SWIFT_FRONTEND_SUPPLEMENTARYOUTPUTPATHS_H
 
 #include "swift/Basic/LLVM.h"
-#include "llvm/ADT/Optional.h"
 
 #include <string>
 

include/swift/Driver/Action.h

@@ -17,7 +17,6 @@
 #include "swift/Basic/LLVM.h"
 #include "swift/Driver/Util.h"
 #include "llvm/ADT/ArrayRef.h"
-#include "llvm/ADT/Optional.h"
 #include "llvm/ADT/StringSwitch.h"
 #include "llvm/ADT/TinyPtrVector.h"
 #include "llvm/Support/Chrono.h"

include/swift/RemoteAST/RemoteAST.h

@@ -24,7 +24,6 @@
 #include "swift/Basic/LLVM.h"
 #include "swift/ABI/MetadataValues.h"
 #include "swift/AST/Type.h"
-#include "llvm/ADT/Optional.h"
 #include "llvm/ADT/StringRef.h"
 
 #include <memory>

include/swift/SIL/SILModule.h

@@ -40,7 +40,6 @@
 #include "llvm/ADT/ArrayRef.h"
 #include "llvm/ADT/FoldingSet.h"
 #include "llvm/ADT/MapVector.h"
-#include "llvm/ADT/Optional.h"
 #include "llvm/ADT/PointerIntPair.h"
 #include "llvm/ADT/SetVector.h"
 #include "llvm/ADT/ilist.h"

include/swift/SILOptimizer/Analysis/Analysis.h

@@ -17,7 +17,6 @@
 #include "swift/SIL/Notifications.h"
 #include "llvm/ADT/DenseMap.h"
 #include "llvm/ADT/DenseSet.h"
-#include "llvm/ADT/Optional.h"
 #include "llvm/ADT/SmallVector.h"
 #include "llvm/Support/Casting.h"
 

include/swift/Subsystems.h

@@ -22,7 +22,6 @@
 #include "swift/Basic/PrimarySpecificPaths.h"
 #include "swift/Basic/Version.h"
 #include "llvm/ADT/ArrayRef.h"
-#include "llvm/ADT/Optional.h"
 #include "llvm/ADT/StringRef.h"
 #include "llvm/ADT/StringSet.h"
 #include "llvm/Support/Mutex.h"