!3860 【startup_standard】【OpenHarmony-3.1-Release】用例修改

Merge pull request !3860 from 南先森/cherry-pick-1656396767

startup/startup_standard/deviceinfo/src/main/js/default/test/ParametersJsUnit.test.js

@@ -321,7 +321,6 @@ describe('SystemParameterTest', function () {
                 } else {
                     console.info('system_parameter_test_0410 set failed :' + err.code());
                 }
-                return p;
             })
             setTimeout(function () {
                 let parameterInfo = systemparameter.get('hw_sc.build.os.version');