Don't login in adding_a_repo test
Don't login in adding_a_repo test

- It uses mockstar credentials which don't work when request is made
  to Github to get current user's repos from Line 14 of ReposController

ngpestelos/codetriage,ojengwa/codewarrior,maclover7/codetriage,CjayBillones/codetriage,codetriage/codetriage,cheerfulstoic/codetriage,codetriage/codetriage,ven0226/codetriage,ven0226/codetriage,avirajkhare00/codetriage,colinrubbert/codetriage,ferdinandrosario/codetriage,hone/codetriage,emilyforst/codetriage,igas/codetriage,avirajkhare00/codetriage,schneems/codetriage-ko1-test-app,igas/codetriage,colinrubbert/codetriage,codetriage/codetriage,igas/codetriage,VishvajitP/codetriage,maclover7/codetriage,hone/codetriage,avirajkhare00/codetriage,maclover7/codetriage,ojengwa/codewarrior,hone/codetriage,CjayBillones/codetriage,colinrubbert/codetriage,emilyforst/codetriage,rvasqz86/codetriage,cheerfulstoic/codetriage,VishvajitP/codetriage,ngpestelos/codetriage,rvasqz86/codetriage,VishvajitP/codetriage,CjayBillones/codetriage,ferdinandrosario/codetriage,schneems/codetriage-ko1-test-app,ven0226/codetriage,ojengwa/codewarrior,cheerfulstoic/codetriage,ngpestelos/codetriage,emilyforst/codetriage,ferdinandrosario/codetriage,rvasqz86/codetriage