Removing unused function

Author: ahejlsberg

src/compiler/checker.ts

@@ -15368,20 +15368,6 @@ namespace ts {
             return symbol && getExportSymbolOfValueSymbolIfExported(symbol).valueDeclaration;
         }
 
-        function instantiateSingleCallFunctionType(functionType: Type, typeArguments: Type[]): Type {
-            if (functionType === unknownType) {
-                return unknownType;
-            }
-
-            const signature = getSingleCallSignature(functionType);
-            if (!signature) {
-                return unknownType;
-            }
-
-            const instantiatedSignature = getSignatureInstantiation(signature, typeArguments);
-            return getOrCreateTypeFromSignature(instantiatedSignature);
-        }
-
         function createResolver(): EmitResolver {
             return {
                 getReferencedExportContainer,