BC break: Remove workaround for loading lock files without dev requires
BC break: Remove workaround for loading lock files without dev requires

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