staging: most: core: remove context pointer

This patch removes the unused context pointer that was meant to provide the
opportunity to store context information.
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/most/core.h

@@ -272,7 +272,6 @@ struct most_aim {
 				  int channel_idx);
 	int (*rx_completion)(struct mbo *mbo);
 	int (*tx_completion)(struct most_interface *iface, int channel_idx);
-	void *context;
 };
 
 #define to_most_aim(d) container_of(d, struct most_aim, dev)