[NFC] Drop Unused Includes from FrontendTool

Author: CodaFi

lib/FrontendTool/FrontendTool.cpp

@@ -41,15 +41,13 @@
 #include "swift/Basic/Dwarf.h"
 #include "swift/Basic/Edit.h"
 #include "swift/Basic/FileSystem.h"
-#include "swift/Basic/JSONSerialization.h"
 #include "swift/Basic/LLVMInitialize.h"
 #include "swift/Basic/Platform.h"
 #include "swift/Basic/PrettyStackTrace.h"
 #include "swift/Basic/SourceManager.h"
 #include "swift/Basic/Statistic.h"
 #include "swift/Basic/UUID.h"
 #include "swift/Option/Options.h"
-#include "swift/Frontend/DiagnosticVerifier.h"
 #include "swift/Frontend/Frontend.h"
 #include "swift/Frontend/PrintingDiagnosticConsumer.h"
 #include "swift/Frontend/SerializedDiagnosticConsumer.h"
@@ -64,29 +62,20 @@
 #include "swift/Serialization/SerializationOptions.h"
 #include "swift/Serialization/SerializedModuleLoader.h"
 #include "swift/SILOptimizer/PassManager/Passes.h"
-#include "swift/SIL/SILRemarkStreamer.h"
 #include "swift/Syntax/Serialization/SyntaxSerialization.h"
 #include "swift/Syntax/SyntaxNodes.h"
 #include "swift/TBDGen/TBDGen.h"
 
-#include "clang/AST/ASTContext.h"
-#include "clang/Basic/Module.h"
-
 #include "llvm/ADT/Statistic.h"
 #include "llvm/IR/LLVMContext.h"
 #include "llvm/IR/Module.h"
 #include "llvm/IRReader/IRReader.h"
 #include "llvm/Option/Option.h"
 #include "llvm/Option/OptTable.h"
-#include "llvm/Remarks/RemarkSerializer.h"
 #include "llvm/Support/Error.h"
 #include "llvm/Support/ErrorHandling.h"
 #include "llvm/Support/Path.h"
 #include "llvm/Support/raw_ostream.h"
-#include "llvm/Support/TargetSelect.h"
-#include "llvm/Support/Timer.h"
-#include "llvm/Support/YAMLTraits.h"
-#include "llvm/Target/TargetMachine.h"
 
 #include <algorithm>
 #include <memory>