Bluetooth: btrsi: remove superfluous header files from btrsi.c

btrsi.c hasn't use any macro or function declared in net/genetlink.h.
Thus, these files can be removed from btrsi.c safely without
affecting the compilation of the ./drivers/bluetooth module
Signed-off-by: Mianhan Liu <liumh1@shanghaitech.edu.cn>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

drivers/bluetooth/btrsi.c

@@ -19,7 +19,6 @@
 #include <net/bluetooth/hci_core.h>
 #include <asm/unaligned.h>
 #include <net/rsi_91x.h>
-#include <net/genetlink.h>
 
 #define RSI_DMA_ALIGN	8
 #define RSI_FRAME_DESC_SIZE	16