[NFC] ConformanceChecker: Remove unused 'CheckedRequirementSignature' ivar

Author: AnthonyLatsis

lib/Sema/TypeCheckProtocol.cpp

@@ -4847,12 +4847,6 @@ ResolveWitnessResult ConformanceChecker::resolveTypeWitnessViaLookup(
 void ConformanceChecker::ensureRequirementsAreSatisfied() {
   Conformance->finishSignatureConformances();
   auto proto = Conformance->getProtocol();
-
-  if (CheckedRequirementSignature)
-    return;
-
-  CheckedRequirementSignature = true;
-
   auto &diags = proto->getASTContext().Diags;
 
   auto DC = Conformance->getDeclContext();

lib/Sema/TypeCheckProtocol.h

@@ -716,9 +716,6 @@ class ConformanceChecker : public WitnessChecker {
   /// Whether we've already complained about problems with this conformance.
   bool AlreadyComplained = false;
 
-  /// Whether we checked the requirement signature already.
-  bool CheckedRequirementSignature = false;
-
   /// Mapping from Objective-C methods to the set of requirements within this
   /// protocol that have the same selector and instance/class designation.
   llvm::SmallDenseMap<ObjCMethodKey, TinyPtrVector<AbstractFunctionDecl *>, 4>