CLI: retry: remove command opts/args in "gnt-X"
CLI: retry: remove command opts/args in "gnt-X"

This new version of the patch removes only the listing of the usage in
the "gnt-X" list, but keeps the strings in since we'll want to enhance
and use them in "gnt-X $cmd --help".

Reviewed-by: ultrotter


leshchevds/ganeti,ganeti/ganeti,apyrgio/ganeti,ganeti-github-testing/ganeti-test-1,leshchevds/ganeti,bitemyapp/ganeti,andir/ganeti,ganeti/ganeti,mbakke/ganeti,dimara/ganeti,dimara/ganeti,grnet/snf-ganeti,andir/ganeti,mbakke/ganeti,yiannist/ganeti,onponomarev/ganeti,yiannist/ganeti,ganeti/ganeti,grnet/snf-ganeti,onponomarev/ganeti,yiannist/ganeti,bitemyapp/ganeti,mbakke/ganeti,leshchevds/ganeti,apyrgio/snf-ganeti,apyrgio/snf-ganeti,andir/ganeti,apyrgio/ganeti,ganeti-github-testing/ganeti-test-1