Remove require of unused gem [#90637048]
Remove require of unused gem [#90637048]

sky-uk/ruby-buildpack,hpcloud/ruby-buildpack,Jonty/ruby-buildpack,ablease/custom-buildpack,Altoros/ruby-buildpack,fcruxen/ruby-buildpack,ekaranto/rails4-bluemix-buildpack,ablease/custom-buildpack,CPPWind/ruby-buildpack,iamjarvo/ruby-buildpack,bskyb-commerce/ruby-buildpack,Altoros/ruby-buildpack,cloudfoundry/ruby-buildpack,sky-uk/ruby-buildpack,ekaranto/rails4-bluemix-buildpack,sky-uk/ruby-buildpack,Jonty/ruby-buildpack,iamjarvo/ruby-buildpack,bskyb-commerce/ruby-buildpack,iamjarvo/ruby-buildpack,fcruxen/ruby-buildpack,Altoros/ruby-buildpack,jumptvs/BP_Ruby,ablease/custom-buildpack,ekaranto/rails4-bluemix-buildpack,sky-uk/ruby-buildpack,CPPWind/ruby-buildpack,Jonty/ruby-buildpack,fcruxen/ruby-buildpack,jumptvs/BP_Ruby,Jonty/ruby-buildpack,cloudfoundry/ruby-buildpack,iamjarvo/ruby-buildpack,cloudfoundry/ruby-buildpack,hpcloud/ruby-buildpack,bskyb-commerce/ruby-buildpack,cloudfoundry/ruby-buildpack,Altoros/ruby-buildpack,hpcloud/ruby-buildpack,hpcloud/ruby-buildpack,cloudfoundry/ruby-buildpack,ablease/custom-buildpack,jumptvs/BP_Ruby,jumptvs/BP_Ruby,CPPWind/ruby-buildpack,bskyb-commerce/ruby-buildpack,fcruxen/ruby-buildpack,CPPWind/ruby-buildpack,ekaranto/rails4-bluemix-buildpack