usb: musb: Makefile: remove unexistent config option

Remove the unexistent CONFIG_USB_INVENTRA_MUSB_HAS_AHB_ID
option from our Makefile.

Problem reported by Sergei Shtylyov <sshtylyov@mvista.com>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/usb/musb/Makefile

@@ -72,12 +72,6 @@ endif
 
 ################################################################################
 
-# FIXME remove all these extra "-DMUSB_* things, stick to CONFIG_*
-
-ifeq ($(CONFIG_USB_INVENTRA_MUSB_HAS_AHB_ID),y)
-	EXTRA_CFLAGS += -DMUSB_AHB_ID
-endif
-
 # Debugging
 
 ifeq ($(CONFIG_USB_MUSB_DEBUG),y)