Remove code related to the rails test command
Remove code related to the rails test command

Remove the mention about this command in the rails command's help
message and remove the "t" alias related to it.

palkan/rails,bogdanvlviv/rails,Edouard-chin/rails,aditya-kapoor/rails,koic/rails,brchristian/rails,lucasmazza/rails,maicher/rails,pvalena/rails,mtsmfm/rails,Vasfed/rails,tijwelch/rails,bogdanvlviv/rails,sealocal/rails,mechanicles/rails,EmmaB/rails-1,utilum/rails,jeremy/rails,assain/rails,kddeisz/rails,starknx/rails,Stellenticket/rails,Edouard-chin/rails,assain/rails,mijoharas/rails,gauravtiwari/rails,mathieujobin/reduced-rails-for-travis,Erol/rails,illacceptanything/illacceptanything,tgxworld/rails,joonyou/rails,prathamesh-sonpatki/rails,schuetzm/rails,kaspth/rails,illacceptanything/illacceptanything,yawboakye/rails,iainbeeston/rails,fabianoleittes/rails,iainbeeston/rails,mathieujobin/reduced-rails-for-travis,tijwelch/rails,gfvcastro/rails,deraru/rails,notapatch/rails,samphilipd/rails,shioyama/rails,illacceptanything/illacceptanything,travisofthenorth/rails,yalab/rails,flanger001/rails,gfvcastro/rails,assain/rails,deraru/rails,bogdanvlviv/rails,yalab/rails,marklocklear/rails,rossta/rails,yhirano55/rails,koic/rails,lcreid/rails,illacceptanything/illacceptanything,arjes/rails,printercu/rails,yhirano55/rails,hanystudy/rails,tgxworld/rails,gcourtemanche/rails,stefanmb/rails,richseviora/rails,ledestin/rails,esparta/rails,utilum/rails,esparta/rails,gauravtiwari/rails,kirs/rails-1,alecspopa/rails,Envek/rails,arjes/rails,arjes/rails,palkan/rails,kaspth/rails,tijwelch/rails,vipulnsward/rails,mtsmfm/rails,yasslab/railsguides.jp,kddeisz/rails,untidy-hair/rails,amoody2108/TechForJustice,kenta-s/rails,rails/rails,lcreid/rails,sealocal/rails,travisofthenorth/rails,MichaelSp/rails,aditya-kapoor/rails,eileencodes/rails,yasslab/railsguides.jp,deraru/rails,tjschuck/rails,yhirano55/rails,georgeclaghorn/rails,maicher/rails,eileencodes/rails,odedniv/rails,repinel/rails,bolek/rails,baerjam/rails,koic/rails,mijoharas/rails,gauravtiwari/rails,elfassy/rails,kmcphillips/rails,palkan/rails,flanger001/rails,rafaelfranca/omg-rails,Edouard-chin/rails,pvalena/rails,xlymian/rails,felipecvo/rails,bradleypriest/rails,flanger001/rails,mechanicles/rails,printercu/rails,palkan/rails,arunagw/rails,mtsmfm/railstest,odedniv/rails,coreyward/rails,pschambacher/rails,Vasfed/rails,Vasfed/rails,illacceptanything/illacceptanything,arunagw/rails,arunagw/rails,jeremy/rails,yasslab/railsguides.jp,rossta/rails,prathamesh-sonpatki/rails,kenta-s/rails,bolek/rails,MichaelSp/rails,illacceptanything/illacceptanything,EmmaB/rails-1,lcreid/rails,Vasfed/rails,georgeclaghorn/rails,shioyama/rails,MSP-Greg/rails,stefanmb/rails,vassilevsky/rails,assain/rails,illacceptanything/illacceptanything,flanger001/rails,ledestin/rails,riseshia/railsguides.kr,rossta/rails,voray/rails,samphilipd/rails,yahonda/rails,deraru/rails,kddeisz/rails,schuetzm/rails,amoody2108/TechForJustice,rbhitchcock/rails,ledestin/rails,coreyward/rails,mtsmfm/rails,gavingmiller/rails,kmcphillips/rails,joonyou/rails,sealocal/rails,Erol/rails,Spin42/rails,Sen-Zhang/rails,betesh/rails,tjschuck/rails,printercu/rails,brchristian/rails,bogdanvlviv/rails,lucasmazza/rails,untidy-hair/rails,alecspopa/rails,Edouard-chin/rails,eileencodes/rails,kaspth/rails,fabianoleittes/rails,yhirano55/rails,illacceptanything/illacceptanything,betesh/rails,eileencodes/rails,utilum/rails,Sen-Zhang/rails,aditya-kapoor/rails,pschambacher/rails,travisofthenorth/rails,yawboakye/rails,sergey-alekseev/rails,mijoharas/rails,prathamesh-sonpatki/rails,elfassy/rails,starknx/rails,Stellenticket/rails,sergey-alekseev/rails,pschambacher/rails,illacceptanything/illacceptanything,tgxworld/rails,bradleypriest/rails,kamipo/rails,illacceptanything/illacceptanything,Envek/rails,kenta-s/rails,mechanicles/rails,illacceptanything/illacceptanything,tgxworld/rails,riseshia/railsguides.kr,bradleypriest/rails,yalab/rails,voray/rails,ngpestelos/rails,Stellenticket/rails,yahonda/rails,ngpestelos/rails,printercu/rails,kmayer/rails,kachick/rails,sergey-alekseev/rails,ngpestelos/rails,mohitnatoo/rails,BlakeWilliams/rails,ttanimichi/rails,jeremy/rails,notapatch/rails,rafaelfranca/omg-rails,mechanicles/rails,BlakeWilliams/rails,alecspopa/rails,matrinox/rails,rbhitchcock/rails,kamipo/rails,pvalena/rails,brchristian/rails,tjschuck/rails,mtsmfm/railstest,gfvcastro/rails,travisofthenorth/rails,rafaelfranca/omg-rails,illacceptanything/illacceptanything,pvalena/rails,esparta/rails,prathamesh-sonpatki/rails,maicher/rails,Envek/rails,kachick/rails,elfassy/rails,gcourtemanche/rails,amoody2108/TechForJustice,mohitnatoo/rails,riseshia/railsguides.kr,mathieujobin/reduced-rails-for-travis,vipulnsward/rails,untidy-hair/rails,tjschuck/rails,Stellenticket/rails,kmcphillips/rails,betesh/rails,marklocklear/rails,kachick/rails,riseshia/railsguides.kr,kddeisz/rails,notapatch/rails,kmcphillips/rails,coreyward/rails,starknx/rails,utilum/rails,yalab/rails,kirs/rails-1,MSP-Greg/rails,mohitnatoo/rails,notapatch/rails,kmayer/rails,joonyou/rails,BlakeWilliams/rails,kamipo/rails,gavingmiller/rails,yawboakye/rails,bolek/rails,vassilevsky/rails,yahonda/rails,xlymian/rails,baerjam/rails,gavingmiller/rails,vipulnsward/rails,MSP-Greg/rails,rails/rails,MSP-Greg/rails,shioyama/rails,schuetzm/rails,esparta/rails,repinel/rails,BlakeWilliams/rails,vipulnsward/rails,aditya-kapoor/rails,gcourtemanche/rails,mtsmfm/railstest,rbhitchcock/rails,matrinox/rails,Spin42/rails,schuetzm/rails,EmmaB/rails-1,illacceptanything/illacceptanything,Sen-Zhang/rails,matrinox/rails,88rabbit/newRails,kmayer/rails,fabianoleittes/rails,lcreid/rails,Spin42/rails,MichaelSp/rails,samphilipd/rails,hanystudy/rails,arunagw/rails,88rabbit/newRails,gfvcastro/rails,odedniv/rails,georgeclaghorn/rails,hanystudy/rails,felipecvo/rails,baerjam/rails,rails/rails,lucasmazza/rails,xlymian/rails,marklocklear/rails,rails/rails,Envek/rails,richseviora/rails,baerjam/rails,vassilevsky/rails,kirs/rails-1,untidy-hair/rails,repinel/rails,joonyou/rails,voray/rails,iainbeeston/rails,Erol/rails,illacceptanything/illacceptanything,mohitnatoo/rails,yasslab/railsguides.jp,stefanmb/rails,shioyama/rails,yahonda/rails,georgeclaghorn/rails,repinel/rails,88rabbit/newRails,ttanimichi/rails,yawboakye/rails,jeremy/rails,ttanimichi/rails,betesh/rails,fabianoleittes/rails,iainbeeston/rails,felipecvo/rails,Erol/rails,richseviora/rails,illacceptanything/illacceptanything