misc: st_core: remove unreachable code

The pr_debug() will never be executed.

Signed-off-by: Sudip Mukherjee <[e-mail]>
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/misc/ti-st/st_core.c

···
 		spin_unlock_irqrestore(&st_gdata->lock, flags);
 		return err;
 	}
-	pr_debug("done %s(%d) ", __func__, new_proto->chnl_id);
 }
 EXPORT_SYMBOL_GPL(st_register);