ASTScope: Remove AbstractPatternEntryScope::isLastEntry()

Author: slavapestov

include/swift/AST/ASTScope.h

@@ -1065,7 +1065,6 @@ class AbstractPatternEntryScope : public ASTScopeImpl {
       ScopeCreator &scopeCreator, function_ref<void(VarDecl *)> foundOne) const;
 
 public:
-  bool isLastEntry() const;
   NullablePtr<Decl> getDeclIfAny() const override { return decl; }
   Decl *getDecl() const { return decl; }
 };

lib/AST/ASTScopeCreation.cpp

@@ -1440,10 +1440,6 @@ void AbstractPatternEntryScope::forEachVarDeclWithLocalizableAccessors(
   });
 }
 
-bool AbstractPatternEntryScope::isLastEntry() const {
-  return patternEntryIndex + 1 == decl->getPatternList().size();
-}
-
 // Following must be after uses to ensure templates get instantiated
 #pragma mark getEnclosingAbstractStorageDecl