rgw/rgw_rest.cc: remove dead and unneeded code

Since origin and meth are already checked to be true there is
no need to check again in s->cio->print() after the initial check.

1019551 Logically dead code (CWE-561)
1019552 Logically dead code (CWE-561)

Signed-off-by: Danny Al-Gaaf <danny.al-gaaf@bisect.de>