m68k: Remove dead GG2 config option

CONFIG_GG2 doesn't exist in Kconfig, therefore remove
all references to it from the source.

Signed-off-by: Christian Dietrich <qy03fugy@stud.informatik.uni-erlangen.de>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig
index 8030e24..77bb0d6 100644
--- a/arch/m68k/Kconfig
+++ b/arch/m68k/Kconfig
@@ -434,7 +434,7 @@
 
 config ISA
 	bool
-	depends on Q40 || AMIGA_PCMCIA || GG2
+	depends on Q40 || AMIGA_PCMCIA
 	default y
 	help
 	  Find out whether you have ISA slots on your motherboard.  ISA is the
@@ -445,7 +445,7 @@
 
 config GENERIC_ISA_DMA
 	bool
-	depends on Q40 || AMIGA_PCMCIA || GG2
+	depends on Q40 || AMIGA_PCMCIA
 	default y
 
 config ZONE_DMA