Remove has_rdoc= method from gemspec
Remove has_rdoc= method from gemspec

Signed-off-by: Konstantin Haase <a90ceb496d9228fe419696e09c742e68f13c38e0@googlemail.com>

sinatra/sinatra,lastcat/sinatra,siberianbear/sinatra,JonRowe/sinatra,dariubs/sinatra,DoraALin/sinatra,jenalgit/sinatra,midorineko/sinatra,porras/sinatra,JonMidhir/sinatra,ktw1222/sinatra,laplaceliu/sinatra,d-bot/sinatra,sethuster/sinatra,d-bot/sinatra,eileencodes/sinatra,RosenDimov/sinatra,Wirachmat/sinatra,howtolearntocode/sinatra,QLGu/sinatra,kgrz/sinatra,trexnix/sinatra,ganmacs/sinatra,sethuster/sinatra,burningTyger/sinatra,ABaldwinHunter/sinatra-classic,twanies/sinatra,gferguson-gd/sinatra,ktw1222/sinatra,mwpastore/sinatra,kumji/sinatra,frechei/sinatra,RosenDimov/sinatra,Wirachmat/sinatra,wzheng1/sinatra,nju520/sinatra,sinatra/sinatra,jkowens/sinatra,Callygraphy/morrissey,blambeau/sinatra,eileencodes/sinatra,defsprite/sinatra,emiliocorpus/sinatra,ksw2599/sinatra,miyazawatomoka/sinatra,QLGu/sinatra,davydovanton/sinatra,JonRowe/sinatra,autopp/sinatra,ryanshaw/sinatra,JonMidhir/sinatra,defsprite/sinatra,mwpastore/sinatra,miyazawatomoka/sinatra,kumji/sinatra,emiliocorpus/sinatra,nicoayala/sinatra,autopp/sinatra,burningTyger/sinatra,midorineko/sinatra,cyberid41/sinatra,Rayheng/sinatra,cyberid41/sinatra,marocchino/sinatra,JonMidhir/sinatra,jkowens/sinatra,guidohcosta/sinatra,burningTyger/sinatra,kyontan/sinatra,jkowens/sinatra,davydovanton/sinatra,mwpastore/sinatra,bmizerany/sinatra,jenalgit/sinatra,trexnix/sinatra,dariubs/sinatra,nju520/sinatra,kyontan/sinatra,laplaceliu/sinatra,frechei/sinatra,porras/sinatra,siberianbear/sinatra,guidohcosta/sinatra,ksw2599/sinatra,ganmacs/sinatra,lastcat/sinatra,gferguson-gd/sinatra,DoraALin/sinatra,ryanshaw/sinatra,wzheng1/sinatra,Rayheng/sinatra,howtolearntocode/sinatra,twanies/sinatra,ABaldwinHunter/sinatra-classic,nicoayala/sinatra