remove Github 404 retries
remove Github 404 retries

composer/composer,slbmeh/composer,alcohol/composer,stof/composer,fabpot/composer,andrerom/composer,staabm/composer,johnstevenson/composer,naderman/composer,stefangr/composer,localheinz/composer,milleruk/composer,floverdevel/composer,pierredup/composer,nicolas-grekas/composer