USB: Drop unnecessary continue in a few drivers

Continue is not needed at the bottom of a loop.

The semantic patch implementing this change is as follows:

@@
@@

for (...;...;...) {
   ...
   if (...) {
     ...
-   continue;
   }
}

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/usb/image/mdc800.c

@@ -478,8 +478,6 @@ static int mdc800_usb_probe (struct usb_interface *intf,
 				{
 					irq_interval=intf_desc->endpoint [j].desc.bInterval;
 				}
-
-				continue;
 			}
 		}
 		if (mdc800->endpoint[i] == -1)