mei: me: drop harmful wait optimization

commit 07cd7be3d92eeeae1f92a017f2cfe4fdd9256526 upstream.

It my take time till ME_RDY will be cleared after the reset,
so we cannot check the bit before we got the interrupt

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>