Remove GENERIC_HARDIRQ config option

After the last architecture switched to generic hard irqs the config
options HAVE_GENERIC_HARDIRQS & GENERIC_HARDIRQS and the related code
for !CONFIG_GENERIC_HARDIRQS can be removed.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

drivers/usb/musb/Kconfig

@@ -71,7 +71,6 @@ config USB_MUSB_DA8XX
 
 config USB_MUSB_TUSB6010
 	tristate "TUSB6010"
-	depends on GENERIC_HARDIRQS
 
 config USB_MUSB_OMAP2PLUS
 	tristate "OMAP2430 and onwards"