[Bug](function) fix function in get wrong result when input const column (#19791)

fix function in get wrong result when input const column

be/src/vec/functions/function_string_to_string.h

@@ -53,8 +53,6 @@ public:
         return arguments[0];
     }
 
-    bool use_default_implementation_for_constants() const override { return true; }
-
     DataTypes get_variadic_argument_types_impl() const override {
         if constexpr (has_variadic_argument) return Impl::get_variadic_argument_types();
         return {};