Remove unreachable database warning
Remove unreachable database warning

`establish_connection` will never raise `ActiveRecord::NoDatabaseError`,
because it doesn't connect to a database; it sets up a connection pool.

MSP-Greg/rails,kmcphillips/rails,Edouard-chin/rails,jeremy/rails,vipulnsward/rails,fabianoleittes/rails,bogdanvlviv/rails,flanger001/rails,BlakeWilliams/rails,kddeisz/rails,georgeclaghorn/rails,palkan/rails,mechanicles/rails,BlakeWilliams/rails,tjschuck/rails,kmcphillips/rails,MSP-Greg/rails,yawboakye/rails,flanger001/rails,repinel/rails,arunagw/rails,jeremy/rails,arunagw/rails,betesh/rails,Stellenticket/rails,Edouard-chin/rails,eileencodes/rails,prathamesh-sonpatki/rails,joonyou/rails,iainbeeston/rails,prathamesh-sonpatki/rails,palkan/rails,yalab/rails,tgxworld/rails,starknx/rails,betesh/rails,EmmaB/rails-1,kmcphillips/rails,vipulnsward/rails,baerjam/rails,repinel/rails,MSP-Greg/rails,Edouard-chin/rails,tjschuck/rails,gauravtiwari/rails,flanger001/rails,schuetzm/rails,BlakeWilliams/rails,mechanicles/rails,mechanicles/rails,rails/rails,esparta/rails,starknx/rails,utilum/rails,shioyama/rails,Edouard-chin/rails,iainbeeston/rails,yhirano55/rails,Envek/rails,georgeclaghorn/rails,prathamesh-sonpatki/rails,betesh/rails,yhirano55/rails,betesh/rails,baerjam/rails,MSP-Greg/rails,notapatch/rails,fabianoleittes/rails,baerjam/rails,kmcphillips/rails,prathamesh-sonpatki/rails,tgxworld/rails,shioyama/rails,rafaelfranca/omg-rails,yahonda/rails,esparta/rails,iainbeeston/rails,yawboakye/rails,Envek/rails,repinel/rails,shioyama/rails,rails/rails,shioyama/rails,schuetzm/rails,georgeclaghorn/rails,Stellenticket/rails,flanger001/rails,lcreid/rails,EmmaB/rails-1,Erol/rails,notapatch/rails,tjschuck/rails,kddeisz/rails,mechanicles/rails,tgxworld/rails,gauravtiwari/rails,jeremy/rails,utilum/rails,yahonda/rails,yalab/rails,gauravtiwari/rails,eileencodes/rails,notapatch/rails,lcreid/rails,utilum/rails,Vasfed/rails,vipulnsward/rails,kddeisz/rails,yalab/rails,tjschuck/rails,yawboakye/rails,yalab/rails,schuetzm/rails,yhirano55/rails,kddeisz/rails,utilum/rails,Vasfed/rails,rafaelfranca/omg-rails,Vasfed/rails,fabianoleittes/rails,eileencodes/rails,joonyou/rails,Stellenticket/rails,Erol/rails,esparta/rails,bogdanvlviv/rails,iainbeeston/rails,Erol/rails,Envek/rails,arunagw/rails,palkan/rails,yahonda/rails,rafaelfranca/omg-rails,Envek/rails,notapatch/rails,EmmaB/rails-1,vipulnsward/rails,rails/rails,arunagw/rails,palkan/rails,tgxworld/rails,yawboakye/rails,jeremy/rails,lcreid/rails,fabianoleittes/rails,esparta/rails,Vasfed/rails,bogdanvlviv/rails,eileencodes/rails,yahonda/rails,yhirano55/rails,schuetzm/rails,bogdanvlviv/rails,Erol/rails,BlakeWilliams/rails,joonyou/rails,repinel/rails,georgeclaghorn/rails,starknx/rails,rails/rails,joonyou/rails,Stellenticket/rails,baerjam/rails,lcreid/rails