Remove obsolete `aws/s3` stuff
Remove obsolete `aws/s3` stuff

`AWS::S3::Base.establish_connection!` is not on the `aws/sdk`, and this code doesn't get used anymore.
rpbaptist/paperclip,pcorliss/paperclip,soramugi/paperclip,mdkalish/paperclip,zurb/paperclip,manorie/paperclip,mrgilman/paperclip,mrb/paperclip,maintux/paperclip,InesCARodrigues/paperclip,pandamako/paperclip,aditya01933/paperclip,rpbaptist/paperclip,cmaion/paperclip,degica/paperclip,danielwanja/paperclip,InesCARodrigues/paperclip,medcat/paperclip,dgynn/paperclip,tylerwillingham/paperclip,felipemathies/paperclip,freeslugs/paperclip,Leadformance/paperclip,Sporky023/paperclip,mdkalish/paperclip,pandamako/paperclip,betesh/paperclip,victorngkp/paperclip,mehulkar/paperclip,medcat/paperclip,joshisa/paperclip,bdewater/paperclip,mehulkar/paperclip,cmaion/paperclip,maintux/paperclip,Cohealo/paperclip,joshisa/paperclip,degica/paperclip,alexandrz/paperclip,Leadformance/paperclip,Cohealo/paperclip,tiegz/paperclip,bdewater/paperclip,agcantarelli/paperclip,frankpinto/paperclip,greatbody/paperclip,felipemathies/paperclip,justanshulsharma/paperclip,alexandrz/paperclip,sideci-sample/sideci-sample-paperclip,carnivalmobile/paperclip,raow/paperclip,hooroo/paperclip,sopheak-se/paperclip,Sporky023/paperclip,howaboutwe/paperclip,crowdtap/paperclip,manorie/paperclip,sopheak-se/paperclip,keathley/paperclip,mrgilman/paperclip,soramugi/paperclip,gfvcastro/paperclip,tiegz/paperclip,frankpinto/paperclip,gfvcastro/paperclip,carnivalmobile/paperclip,crowdtap/paperclip,onursarikaya/paperclip,victorngkp/paperclip,raow/paperclip,mrb/paperclip,agcantarelli/paperclip,freeslugs/paperclip,greatbody/paperclip,ScotterC/paperclip,dgynn/paperclip,ScotterC/paperclip,onursarikaya/paperclip,best-teacher/paperclip-old,aditya01933/paperclip,zurb/paperclip,justanshulsharma/paperclip,betesh/paperclip,tylerwillingham/paperclip,12spokes/paperclip,keathley/paperclip