codeql: remove some useless check

packages/hydrojudge/bin/hydrojudge.js

@@ -2,5 +2,5 @@
 
 const { argv } = require('yargs');
 
-if (argv._[0] == 'cache') require('../dist/cache')()
-else if (!argv._) require('../dist/daemon')();
+if ((argv._ || [])[0] == 'cache') require('../dist/cache')()
+else require('../dist/daemon')();

packages/hydrojudge/src/judge/hack.ts

@@ -106,7 +106,6 @@ export const judge = async (ctx) => {
             });
         }
     } else if (status === STATUS.STATUS_RUNTIME_ERROR && code) {
-        status = STATUS.STATUS_RUNTIME_ERROR;
         if (code < 32) message = signals[code];
         else message = `您的程序返回了 ${code}.`;
     }