staging: r8188eu: remove enum _RTL8712_RF_MIMO_CONFIG_

The enum _RTL8712_RF_MIMO_CONFIG_ is not used, remove it.

Signed-off-by: Michael Straube <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/staging/r8188eu/include/rtw_rf.h

···
 	PREAMBLE_SHORT	= 3,
 };
 
-enum _RTL8712_RF_MIMO_CONFIG_ {
-	RTL8712_RFCONFIG_1T = 0x10,
-	RTL8712_RFCONFIG_2T = 0x20,
-	RTL8712_RFCONFIG_1R = 0x01,
-	RTL8712_RFCONFIG_2R = 0x02,
-	RTL8712_RFCONFIG_1T1R = 0x11,
-	RTL8712_RFCONFIG_1T2R = 0x12,
-	RTL8712_RFCONFIG_TURBO = 0x92,
-	RTL8712_RFCONFIG_2T2R = 0x22
-};
-
 enum rf90_radio_path {
 	RF90_PATH_A = 0,		/* Radio Path A */
 	RF90_PATH_B = 1,		/* Radio Path B */