Remove unused method from interface

Author: ondrejmirtes

src/Reflection/ResolvedFunctionVariant.php

@@ -11,6 +11,4 @@ public function getOriginalParametersAcceptor(): ParametersAcceptor;
 
 	public function getReturnTypeWithUnresolvableTemplateTypes(): Type;
 
-	public function getPhpDocReturnTypeWithUnresolvableTemplateTypes(): Type;
-
 }