mei: drop nonexistent function prototype

mei_amthif_read_message prototype was not dropped
in one of the moving/renaming patches

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

drivers/misc/mei/mei_dev.h

@@ -433,9 +433,6 @@ struct mei_cl_cb *mei_amthif_find_read_list_entry(struct mei_device *dev,
 void mei_amthif_run_next_cmd(struct mei_device *dev);
 
 
-int mei_amthif_read_message(struct mei_cl_cb *complete_list,
-		struct mei_device *dev, struct mei_msg_hdr *mei_hdr);
-
 int mei_amthif_irq_write_complete(struct mei_device *dev, s32 *slots,
 			struct mei_cl_cb *cb, struct mei_cl_cb *cmpl_list);