remove needless assignment
remove needless assignment

Omnihuron/webmock,hilben/webmock,sinisterstuf/webmock,spjsschl/webmock,arronmabrey/webmock,VincentZhao/webmock,xuwupeng2000/webmock,bblimke/webmock,hobodave/webmock,henrik/webmock,davidbegin/webmock,maruware/webmock,avantcredit/webmock,ixti/webmock,sferik/webmock,taiki45/webmock