* [android] Delete arm-v7a and x86 so before the program is run.
* [android] Delete arm-v7a and x86 so before the program is run.

Hanks10100/incubator-weex,alibaba/weex,Hanks10100/incubator-weex,Hanks10100/incubator-weex,acton393/incubator-weex,erha19/incubator-weex,Hanks10100/incubator-weex,Hanks10100/incubator-weex,Hanks10100/incubator-weex,miomin/incubator-weex,erha19/incubator-weex,acton393/incubator-weex,miomin/incubator-weex,alibaba/weex,acton393/incubator-weex,KalicyZhou/incubator-weex,erha19/incubator-weex,acton393/incubator-weex,alibaba/weex,acton393/incubator-weex,acton393/incubator-weex,alibaba/weex,acton393/incubator-weex,KalicyZhou/incubator-weex,erha19/incubator-weex,erha19/incubator-weex,miomin/incubator-weex,miomin/incubator-weex,alibaba/weex,Hanks10100/incubator-weex,miomin/incubator-weex,erha19/incubator-weex,KalicyZhou/incubator-weex,KalicyZhou/incubator-weex,erha19/incubator-weex,KalicyZhou/incubator-weex,miomin/incubator-weex,acton393/incubator-weex,miomin/incubator-weex,miomin/incubator-weex,Hanks10100/incubator-weex,erha19/incubator-weex,alibaba/weex,alibaba/weex,KalicyZhou/incubator-weex