USB: Fix unneeded endpoint check in pxa27x_udc

The request allocation code doesn't need to check if the
endpoint is not NULL, as the only caller in
include/linux/usb/gadget.h, usb_ep_alloc_request() needs the
endpoint pointer to have a correct value to trigger the
allocation code.

Signed-off-by: Robert Jarzmik <[e-mail]>
Acked-by: Alan Cox <[e-mail]>
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/usb/gadget/pxa27x_udc.c

···
 	struct pxa27x_request *req;
 
 	req = kzalloc(sizeof *req, gfp_flags);
-	if (!req || !_ep)
+	if (!req)
 		return NULL;
 
 	INIT_LIST_HEAD(&req->queue);