add statistics xts

Signed-off-by: Nzhangxingxia <zhangxingxia1@huawei.com>

storage/storagestatisticsjstest/AppScope/resources/base/element/string.json

@@ -2,7 +2,7 @@
   "string": [
     {
       "name": "app_name",
-      "value": "fileAccess"
+      "value": "storageStatistics"
     }
   ]
 }

storage/storagestatisticsjstest/entry/src/main/module.json

@@ -32,17 +32,6 @@
             ]
           }
         ]
-      }
-    ],
-    "requestPermissions": [
-		  {
-			 "name": "ohos.permission.GRANT_SENSITIVE_PERMISSIONS"
-		  },
-      {
-        "name": "ohos.permission.REVOKE_SENSITIVE_PERMISSIONS"
-       },
-      {
-        "name": "ohos.permission.READ_MEDIA"
       }
     ]
   }