LibJS: Make ParserError::to_string infallible

Author: https://github.com/shannonbooth
Commit: 0090b916dd
Pull-request: https://github.com/SerenityOS/serenity/pull/23817
Reviewed-by: https://github.com/ADKaster
Reviewed-by: https://github.com/trflynn89

Userland/Libraries/LibWeb/HTML/Scripting/ClassicScript.cpp

@@ -59,7 +59,7 @@ JS::NonnullGCPtr<ClassicScript> ClassicScript::create(ByteString filename, Strin
         dbgln_if(HTML_SCRIPT_DEBUG, "ClassicScript: Failed to parse: {}", parse_error.to_byte_string());
 
         // 1. Set script's parse error and its error to rethrow to result[0].
-        script->set_parse_error(JS::SyntaxError::create(environment_settings_object.realm(), parse_error.to_string().release_value_but_fixme_should_propagate_errors()));
+        script->set_parse_error(JS::SyntaxError::create(environment_settings_object.realm(), parse_error.to_string()));
         script->set_error_to_rethrow(script->parse_error());
 
         // 2. Return script.