OpenHarmony-3.1-Release match for system api

Signed-off-by: Ngreada <kangqiao1@huawei.com>

powermgr/powermgrbattery/src/main/js/default/test/battery_unit.test.js

@@ -14,7 +14,6 @@
  */
 
 import app from '@system.app'
-import Context from '@ohos.napi_context'
 import batteryInfo from '@ohos.batteryInfo';
 import brightness from '@ohos.brightness';
 import { describe, beforeAll, beforeEach, afterEach, afterAll, it, expect } from 'deccjsunit/index'

powermgr/powermgrbattery/src/main/js/default/test/power_manager_running_lock.test.js

@@ -14,10 +14,8 @@
  */
 
 import app from '@system.app'
-import Context from '@ohos.napi_context'
 import runningLock from '@ohos.runningLock';
 import power from '@ohos.power';
-import '@ohos.permission.RUNNING_LOCK'
 
 import { describe, beforeAll, beforeEach, afterEach, afterAll, it, expect } from 'deccjsunit/index'
 

powermgr/powermgrbattery/src/main/js/default/test/power_manager_running_lock_dev.test.js

@@ -14,10 +14,8 @@
  */
 
 import app from '@system.app'
-import Context from '@ohos.napi_context'
 import runningLock from '@ohos.runningLock';
 import power from '@ohos.power';
-import '@ohos.permission.RUNNING_LOCK'
 
 import { describe, beforeAll, beforeEach, afterEach, afterAll, it, expect } from 'deccjsunit/index'
 

powermgr/powermgrdisplay/src/main/js/default/test/system_display.test.js

@@ -17,8 +17,8 @@ import brightness from '@system.brightness';
 import { describe } from 'deccjsunit/index';
 
 const INPUT_ERROR_CODE_CODE = 202;
-const SET_VALUE_MSG = "value is not an available number";
-const SET_MODE_MSG = "value is not an available number";
+const SET_VALUE_MSG = "setMode: value is not an available number";
+const SET_MODE_MSG = "setMode: value is not an available number";
 
 function sleep(time){
     return new Promise((resolve) => setTimeout(resolve, time));

powermgr/powermgrpower/src/main/js/default/test/power_manager_running_lock.test.js

@@ -14,7 +14,6 @@
  */
 
 import runningLock from '@ohos.runningLock';
-import '@ohos.permission.RUNNING_LOCK'
 
 import { describe, beforeAll, beforeEach, afterEach, afterAll, it, expect } from 'deccjsunit/index'