Revert "Support simultaneous g:rspec_command and g:rspec_runner"
Revert "Support simultaneous g:rspec_command and g:rspec_runner"

This reverts commit 4c637bd453efcde083a575b0dccd93995b3465bc.

christian-schulze/vim-rspec,patrickspencer/vim-rspec,thoughtbot/vim-rspec