Remove mention of source_under_test.
Remove mention of source_under_test.

Summary: source_under_test was removed a long time ago.

Test Plan: docs/soyweb-local.sh

Reviewed By: JoelMarcey

fbshipit-source-id: 3317e75

robbertvanginkel/buck,ilya-klyuchnikov/buck,k21/buck,shs96c/buck,marcinkwiatkowski/buck,kageiit/buck,daedric/buck,clonetwin26/buck,shybovycha/buck,shs96c/buck,daedric/buck,SeleniumHQ/buck,sdwilsh/buck,darkforestzero/buck,k21/buck,darkforestzero/buck,daedric/buck,zpao/buck,romanoid/buck,k21/buck,daedric/buck,romanoid/buck,ilya-klyuchnikov/buck,brettwooldridge/buck,SeleniumHQ/buck,sdwilsh/buck,sdwilsh/buck,darkforestzero/buck,zhan-xiong/buck,robbertvanginkel/buck,marcinkwiatkowski/buck,sdwilsh/buck,darkforestzero/buck,marcinkwiatkowski/buck,grumpyjames/buck,grumpyjames/buck,kageiit/buck,darkforestzero/buck,JoelMarcey/buck,rmaz/buck,shs96c/buck,rmaz/buck,ilya-klyuchnikov/buck,sdwilsh/buck,shybovycha/buck,grumpyjames/buck,ilya-klyuchnikov/buck,darkforestzero/buck,vschs007/buck,brettwooldridge/buck,vschs007/buck,sdwilsh/buck,brettwooldridge/buck,nguyentruongtho/buck,marcinkwiatkowski/buck,clonetwin26/buck,zhan-xiong/buck,Addepar/buck,zhan-xiong/buck,grumpyjames/buck,Addepar/buck,k21/buck,dsyang/buck,clonetwin26/buck,rmaz/buck,facebook/buck,JoelMarcey/buck,SeleniumHQ/buck,grumpyjames/buck,davido/buck,SeleniumHQ/buck,SeleniumHQ/buck,robbertvanginkel/buck,sdwilsh/buck,dsyang/buck,darkforestzero/buck,dsyang/buck,dsyang/buck,SeleniumHQ/buck,JoelMarcey/buck,shs96c/buck,shybovycha/buck,daedric/buck,ilya-klyuchnikov/buck,nguyentruongtho/buck,zpao/buck,zhan-xiong/buck,darkforestzero/buck,shs96c/buck,darkforestzero/buck,robbertvanginkel/buck,marcinkwiatkowski/buck,darkforestzero/buck,LegNeato/buck,brettwooldridge/buck,dsyang/buck,romanoid/buck,clonetwin26/buck,LegNeato/buck,zhan-xiong/buck,rmaz/buck,facebook/buck,vschs007/buck,zpao/buck,nguyentruongtho/buck,k21/buck,facebook/buck,robbertvanginkel/buck,nguyentruongtho/buck,LegNeato/buck,davido/buck,marcinkwiatkowski/buck,grumpyjames/buck,romanoid/buck,marcinkwiatkowski/buck,k21/buck,rmaz/buck,kageiit/buck,k21/buck,k21/buck,daedric/buck,nguyentruongtho/buck,shybovycha/buck,vschs007/buck,zpao/buck,SeleniumHQ/buck,JoelMarcey/buck,rmaz/buck,Addepar/buck,rmaz/buck,romanoid/buck,shybovycha/buck,JoelMarcey/buck,facebook/buck,dsyang/buck,robbertvanginkel/buck,shs96c/buck,zhan-xiong/buck,JoelMarcey/buck,rmaz/buck,shs96c/buck,daedric/buck,SeleniumHQ/buck,vschs007/buck,davido/buck,sdwilsh/buck,dsyang/buck,Addepar/buck,darkforestzero/buck,daedric/buck,grumpyjames/buck,SeleniumHQ/buck,Addepar/buck,shybovycha/buck,Addepar/buck,romanoid/buck,nguyentruongtho/buck,nguyentruongtho/buck,daedric/buck,robbertvanginkel/buck,Addepar/buck,zhan-xiong/buck,LegNeato/buck,clonetwin26/buck,daedric/buck,shybovycha/buck,shs96c/buck,ilya-klyuchnikov/buck,LegNeato/buck,clonetwin26/buck,LegNeato/buck,k21/buck,davido/buck,davido/buck,Addepar/buck,kageiit/buck,LegNeato/buck,JoelMarcey/buck,davido/buck,sdwilsh/buck,brettwooldridge/buck,robbertvanginkel/buck,shybovycha/buck,dsyang/buck,shybovycha/buck,grumpyjames/buck,dsyang/buck,dsyang/buck,zpao/buck,romanoid/buck,zhan-xiong/buck,zhan-xiong/buck,clonetwin26/buck,zhan-xiong/buck,facebook/buck,rmaz/buck,romanoid/buck,Addepar/buck,grumpyjames/buck,rmaz/buck,vschs007/buck,zhan-xiong/buck,grumpyjames/buck,k21/buck,sdwilsh/buck,sdwilsh/buck,LegNeato/buck,robbertvanginkel/buck,shybovycha/buck,romanoid/buck,SeleniumHQ/buck,JoelMarcey/buck,sdwilsh/buck,Addepar/buck,marcinkwiatkowski/buck,marcinkwiatkowski/buck,kageiit/buck,robbertvanginkel/buck,Addepar/buck,robbertvanginkel/buck,dsyang/buck,vschs007/buck,brettwooldridge/buck,davido/buck,LegNeato/buck,dsyang/buck,SeleniumHQ/buck,SeleniumHQ/buck,JoelMarcey/buck,vschs007/buck,brettwooldridge/buck,ilya-klyuchnikov/buck,shybovycha/buck,davido/buck,davido/buck,LegNeato/buck,davido/buck,JoelMarcey/buck,LegNeato/buck,zpao/buck,shs96c/buck,clonetwin26/buck,kageiit/buck,romanoid/buck,brettwooldridge/buck,ilya-klyuchnikov/buck,brettwooldridge/buck,daedric/buck,grumpyjames/buck,ilya-klyuchnikov/buck,brettwooldridge/buck,k21/buck,daedric/buck,darkforestzero/buck,darkforestzero/buck,daedric/buck,brettwooldridge/buck,shs96c/buck,facebook/buck,facebook/buck,romanoid/buck,davido/buck,davido/buck,sdwilsh/buck,vschs007/buck,k21/buck,grumpyjames/buck,shs96c/buck,clonetwin26/buck,vschs007/buck,ilya-klyuchnikov/buck,clonetwin26/buck,shybovycha/buck,dsyang/buck,zhan-xiong/buck,ilya-klyuchnikov/buck,ilya-klyuchnikov/buck,vschs007/buck,rmaz/buck,marcinkwiatkowski/buck,vschs007/buck,vschs007/buck,rmaz/buck,JoelMarcey/buck,clonetwin26/buck,clonetwin26/buck,k21/buck,brettwooldridge/buck,shs96c/buck,romanoid/buck,brettwooldridge/buck,Addepar/buck,shybovycha/buck,robbertvanginkel/buck,davido/buck,zhan-xiong/buck,LegNeato/buck,JoelMarcey/buck,JoelMarcey/buck,kageiit/buck,marcinkwiatkowski/buck,romanoid/buck,LegNeato/buck,ilya-klyuchnikov/buck,zpao/buck,Addepar/buck,SeleniumHQ/buck,shs96c/buck,marcinkwiatkowski/buck,robbertvanginkel/buck,rmaz/buck,marcinkwiatkowski/buck,clonetwin26/buck