Fix [unused-private-field] error

Author: dybv-sc

llvm/tools/llvm-exegesis/lib/SnippetFile.cpp

@@ -37,10 +37,10 @@ namespace {
 // An MCStreamer that reads a BenchmarkCode definition from a file.
 class BenchmarkCodeStreamer : public MCStreamer, public AsmCommentConsumer {
 public:
-  explicit BenchmarkCodeStreamer(const ExegesisTarget &Target,
-                                 MCContext *Context, const LLVMState &State,
+  explicit BenchmarkCodeStreamer(MCContext *Context, const LLVMState &State,
                                  BenchmarkCode *Result)
-      : MCStreamer(*Context), Target(Target), State(State), Result(Result) {}
+      : MCStreamer(*Context), State(State), Result(Result) {}
+
   // Implementation of the MCStreamer interface. We only care about
   // instructions.
   void emitInstruction(const MCInst &Instruction,
@@ -218,7 +218,6 @@ class BenchmarkCodeStreamer : public MCStreamer, public AsmCommentConsumer {
     return *RegisterNumber;
   }
 
-  const ExegesisTarget &Target;
   const LLVMState &State;
   BenchmarkCode *const Result;
   unsigned InvalidComments = 0;
@@ -252,8 +251,7 @@ Expected<std::vector<BenchmarkCode>> readSnippets(const LLVMState &State,
       TM.getTarget().createMCObjectFileInfo(Context, /*PIC=*/false));
   Context.setObjectFileInfo(ObjectFileInfo.get());
   Context.initInlineSourceManager();
-  BenchmarkCodeStreamer Streamer(State.getExegesisTarget(), &Context, State,
-                                 &Result);
+  BenchmarkCodeStreamer Streamer(&Context, State, &Result);
 
   std::string Error;
   raw_string_ostream ErrorStream(Error);