Remove get_all_accounts as there are generally too many to get
Remove get_all_accounts as there are generally too many to get

Production instances like review.source.android.com are generally
too populated with user accounts to be listing all of them at one
time.  Instead the accounts have to paginate or use queries.

Signed-off-by: Shawn O. Pearce <f3ea74d906fa9fe97c1fef6bad9cb871485c7045@google.com>

austinchic/Gerrit,sudosurootdev/gerrit,renchaorevee/gerrit,Shrews/PyGerrit,netroby/gerrit,rtyley/mini-git-server,GerritCodeReview/gerrit,gracefullife/gerrit,ashang/aaron-gerrit,WANdisco/gerrit,midnightradio/gerrit,teamblueridge/gerrit,Seinlin/gerrit,gcoders/gerrit,joshuawilson/merrit,ckamm/gerrit,pkdevbox/gerrit,thinkernel/gerrit,WANdisco/gerrit,Seinlin/gerrit,renchaorevee/gerrit,cjh1/gerrit,supriyantomaftuh/gerrit,quyixia/gerrit,austinchic/Gerrit,Team-OctOS/host_gerrit,catrope/gerrit,evanchueng/gerrit,cjh1/gerrit,gerrit-review/gerrit,pkdevbox/gerrit,teamblueridge/gerrit,jackminicloud/test,anminhsu/gerrit,m1kah/gerrit-contributions,bootstraponline-archive/gerrit-mirror,keerath/gerrit_newssh,makholm/gerrit-ceremony,pkdevbox/gerrit,hdost/gerrit,Distrotech/gerrit,bpollack/gerrit,Shrews/PyGerrit,gcoders/gerrit,gerrit-review/gerrit,hdost/gerrit,netroby/gerrit,hdost/gerrit,austinchic/Gerrit,sudosurootdev/gerrit,catrope/gerrit,dwhipstock/gerrit,TonyChai24/test,Seinlin/gerrit,supriyantomaftuh/gerrit,duboisf/gerrit,Team-OctOS/host_gerrit,dwhipstock/gerrit,jeblair/gerrit,midnightradio/gerrit,joshuawilson/merrit,anminhsu/gerrit,renchaorevee/gerrit,netroby/gerrit,joshuawilson/merrit,WANdisco/gerrit,GerritCodeReview/gerrit,TonyChai24/test,GerritCodeReview/gerrit,cjh1/gerrit,gcoders/gerrit,skurfuerst/gerrit,anminhsu/gerrit,keerath/gerrit_newssh,Overruler/gerrit,joshuawilson/merrit,GerritCodeReview/gerrit,ashang/aaron-gerrit,thesamet/gerrit,thinkernel/gerrit,1yvT0s/gerrit,Distrotech/gerrit,hdost/gerrit,rtyley/mini-git-server,anminhsu/gerrit,Saulis/gerrit,joshuawilson/merrit,keerath/gerrit_newssh,zommarin/gerrit,skurfuerst/gerrit,bootstraponline-archive/gerrit-mirror,jackminicloud/test,netroby/gerrit,Team-OctOS/host_gerrit,Overruler/gerrit,evanchueng/gerrit,ckamm/gerrit,quyixia/gerrit,GerritCodeReview/gerrit-attic,MerritCR/merrit,sudosurootdev/gerrit,zommarin/gerrit,basilgor/gerrit,teamblueridge/gerrit,Distrotech/gerrit,MerritCR/merrit,Saulis/gerrit,qtproject/qtqa-gerrit,CandyShop/gerrit,midnightradio/gerrit,WANdisco/gerrit,jackminicloud/test,Seinlin/gerrit,ckamm/gerrit,catrope/gerrit,Seinlin/gerrit,quyixia/gerrit,m1kah/gerrit-contributions,TonyChai24/test,anminhsu/gerrit,gerrit-review/gerrit,makholm/gerrit-ceremony,Seinlin/gerrit,CandyShop/gerrit,evanchueng/gerrit,supriyantomaftuh/gerrit,jackminicloud/test,thinkernel/gerrit,ashang/aaron-gerrit,WANdisco/gerrit,hdost/gerrit,Saulis/gerrit,midnightradio/gerrit,catrope/gerrit,basilgor/gerrit,1yvT0s/gerrit,gcoders/gerrit,bpollack/gerrit,thesamet/gerrit,basilgor/gerrit,evanchueng/gerrit,qtproject/qtqa-gerrit,gracefullife/gerrit,hdost/gerrit,netroby/gerrit,dwhipstock/gerrit,MerritCR/merrit,bootstraponline-archive/gerrit-mirror,thinkernel/gerrit,cjh1/gerrit,duboisf/gerrit,midnightradio/gerrit,evanchueng/gerrit,MerritCR/merrit,gerrit-review/gerrit,atdt/gerrit,Overruler/gerrit,dwhipstock/gerrit,makholm/gerrit-ceremony,MerritCR/merrit,GerritCodeReview/gerrit,basilgor/gerrit,thesamet/gerrit,makholm/gerrit-ceremony,renchaorevee/gerrit,Overruler/gerrit,gerrit-review/gerrit,bootstraponline-archive/gerrit-mirror,Overruler/gerrit,midnightradio/gerrit,jackminicloud/test,thesamet/gerrit,qtproject/qtqa-gerrit,Team-OctOS/host_gerrit,renchaorevee/gerrit,1yvT0s/gerrit,pkdevbox/gerrit,teamblueridge/gerrit,basilgor/gerrit,thinkernel/gerrit,GerritCodeReview/gerrit-attic,ckamm/gerrit,gerrit-review/gerrit,Team-OctOS/host_gerrit,bootstraponline-archive/gerrit-mirror,pkdevbox/gerrit,renchaorevee/gerrit,gcoders/gerrit,Shrews/PyGerrit,qtproject/qtqa-gerrit,supriyantomaftuh/gerrit,supriyantomaftuh/gerrit,qtproject/qtqa-gerrit,m1kah/gerrit-contributions,zommarin/gerrit,anminhsu/gerrit,supriyantomaftuh/gerrit,netroby/gerrit,dwhipstock/gerrit,skurfuerst/gerrit,Saulis/gerrit,bootstraponline-archive/gerrit-mirror,ckamm/gerrit,sudosurootdev/gerrit,duboisf/gerrit,Saulis/gerrit,atdt/gerrit,Shrews/PyGerrit,quyixia/gerrit,m1kah/gerrit-contributions,1yvT0s/gerrit,Distrotech/gerrit,bpollack/gerrit,CandyShop/gerrit,skurfuerst/gerrit,1yvT0s/gerrit,ashang/aaron-gerrit,WANdisco/gerrit,TonyChai24/test,thinkernel/gerrit,gracefullife/gerrit,keerath/gerrit_newssh,quyixia/gerrit,pkdevbox/gerrit,quyixia/gerrit,joshuawilson/merrit,hdost/gerrit,GerritCodeReview/gerrit,TonyChai24/test,atdt/gerrit,jackminicloud/test,pkdevbox/gerrit,thesamet/gerrit,supriyantomaftuh/gerrit,Distrotech/gerrit,atdt/gerrit,TonyChai24/test,thinkernel/gerrit,GerritCodeReview/gerrit-attic,qtproject/qtqa-gerrit,CandyShop/gerrit,renchaorevee/gerrit,zommarin/gerrit,Team-OctOS/host_gerrit,dwhipstock/gerrit,bpollack/gerrit,CandyShop/gerrit,Team-OctOS/host_gerrit,netroby/gerrit,MerritCR/merrit,austinchic/Gerrit,bpollack/gerrit,quyixia/gerrit,dwhipstock/gerrit,jackminicloud/test,Saulis/gerrit,thesamet/gerrit,anminhsu/gerrit,qtproject/qtqa-gerrit,gcoders/gerrit,gcoders/gerrit,gerrit-review/gerrit,GerritCodeReview/gerrit,TonyChai24/test,sudosurootdev/gerrit,GerritCodeReview/gerrit,WANdisco/gerrit,bpollack/gerrit,thesamet/gerrit,Distrotech/gerrit,Overruler/gerrit,gracefullife/gerrit,teamblueridge/gerrit,jeblair/gerrit,ashang/aaron-gerrit,duboisf/gerrit,Distrotech/gerrit,MerritCR/merrit,zommarin/gerrit,MerritCR/merrit,jeblair/gerrit,joshuawilson/merrit,Seinlin/gerrit,keerath/gerrit_newssh,jeblair/gerrit,atdt/gerrit,joshuawilson/merrit,gracefullife/gerrit