docs: remove non-existing config options
docs: remove non-existing config options

Fix #1951

jelgar1/fpl-api,JohnnyQQQQ/angular-seed-material2,nickaranz/robinhood-ui,nickaranz/robinhood-ui,AWNICS/mesomeds-ng2,Shyiy/angular-seed,nie-ine/raeber-website,felipecamargo/ACSC-SBPL-M,jigarpt/angular-seed-semi,fr-esco/angular-seed,felipecamargo/ACSC-SBPL-M,mgechev/angular2-seed,ysyun/angular-seed-stub-api-environment,jigarpt/angular-seed-semi,ysyun/angular-seed-stub-api-environment,pieczkus/whyblogfront,mgechev/angular-seed,dmitriyse/angular2-seed,Karasuni/angular-seed,idready/Philosophers,Shyiy/angular-seed,idready/Philosophers,nie-ine/raeber-website,nickaranz/robinhood-ui,JohnnyQQQQ/angular-seed-material2,fr-esco/angular-seed,jigarpt/angular-seed-semi,jelgar1/fpl-api,felipecamargo/ACSC-SBPL-M,idready/Philosophers,nie-ine/raeber-website,JohnnyQQQQ/angular-seed-material2,ysyun/angular-seed-stub-api-environment,pieczkus/whyblogfront,hookom/climbontheway,dmitriyse/angular2-seed,Karasuni/angular-seed,arun-awnics/mesomeds-ng2,mgechev/angular-seed,ysyun/angular-seed-stub-api-environment,dmitriyse/angular2-seed,AWNICS/mesomeds-ng2,fr-esco/angular-seed,pieczkus/whyblogfront,vyakymenko/angular-seed-express,arun-awnics/mesomeds-ng2,christophersanson/js-demo-fe,mgechev/angular2-seed,jelgar1/fpl-api,hookom/climbontheway,christophersanson/js-demo-fe,christophersanson/js-demo-fe,mgechev/angular-seed,sanastasiadis/angular-seed-openlayers,vyakymenko/angular-seed-express,mgechev/angular2-seed,sanastasiadis/angular-seed-openlayers,nie-ine/raeber-website,hookom/climbontheway,Shyiy/angular-seed,dmitriyse/angular2-seed,arun-awnics/mesomeds-ng2,sanastasiadis/angular-seed-openlayers,vyakymenko/angular-seed-express,hookom/climbontheway,Karasuni/angular-seed,AWNICS/mesomeds-ng2