Remove problematic global remote conf
Remove problematic global remote conf

Having this in the global config means that every git repo will think
there already is a remote "origin", which means one can't 'remote add
origin' in a new repo.

That means in turn that fetch config will not be
set up correctly for the origin.

See
http://stackoverflow.com/questions/13572191/cannot-remove-remote-origin#comment18598029_13572191

ramn/gists-public,ramn/gists-public,ramn/gists-public