Revert "* [ios] update playground settings"
Revert "* [ios] update playground settings"

This reverts commit d5ed590734170c30a243ffa94f2e3f6a0c213d44.

Hanks10100/incubator-weex,erha19/incubator-weex,MrRaindrop/incubator-weex,acton393/incubator-weex,acton393/incubator-weex,cxfeng1/incubator-weex,KalicyZhou/incubator-weex,cxfeng1/incubator-weex,leoward/incubator-weex,xiayun200825/weex,acton393/incubator-weex,erha19/incubator-weex,KalicyZhou/incubator-weex,cxfeng1/incubator-weex,leoward/incubator-weex,erha19/incubator-weex,erha19/incubator-weex,KalicyZhou/incubator-weex,cxfeng1/incubator-weex,miomin/incubator-weex,alibaba/weex,xiayun200825/weex,miomin/incubator-weex,erha19/incubator-weex,acton393/incubator-weex,MrRaindrop/incubator-weex,MrRaindrop/incubator-weex,alibaba/weex,alibaba/weex,acton393/incubator-weex,leoward/incubator-weex,KalicyZhou/incubator-weex,miomin/incubator-weex,acton393/incubator-weex,acton393/incubator-weex,acton393/incubator-weex,erha19/incubator-weex,MrRaindrop/incubator-weex,miomin/incubator-weex,KalicyZhou/incubator-weex,erha19/incubator-weex,alibaba/weex,miomin/incubator-weex,Hanks10100/incubator-weex,cxfeng1/incubator-weex,Hanks10100/incubator-weex,leoward/incubator-weex,leoward/incubator-weex,alibaba/weex,Hanks10100/incubator-weex,xiayun200825/weex,MrRaindrop/incubator-weex,miomin/incubator-weex,alibaba/weex,Hanks10100/incubator-weex,alibaba/weex,KalicyZhou/incubator-weex,erha19/incubator-weex,Hanks10100/incubator-weex,MrRaindrop/incubator-weex,miomin/incubator-weex,miomin/incubator-weex,xiayun200825/weex,Hanks10100/incubator-weex,xiayun200825/weex,cxfeng1/incubator-weex,xiayun200825/weex,Hanks10100/incubator-weex,leoward/incubator-weex