staging: r8188eu: enum hw90_block is not used

The enumeration hw90_block is not used. Remove it.

Acked-by: Martin Kaiser <martin@kaiser.cx>
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20220102131141.12310-9-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/r8188eu/include/Hal8188EPhyCfg.h

@@ -17,14 +17,6 @@
 
 /*------------------------------Define structure----------------------------*/
 
-enum hw90_block {
-	HW90_BLOCK_MAC = 0,
-	HW90_BLOCK_PHY0 = 1,
-	HW90_BLOCK_PHY1 = 2,
-	HW90_BLOCK_RF = 3,
-	HW90_BLOCK_MAXIMUM = 4, /*  Never use this */
-};
-
 enum rf_radio_path {
 	RF_PATH_A = 0,			/* Radio Path A */
 	RF_PATH_B = 1,			/* Radio Path B */