m68k: Kconfig.machine: remove obsolete configs ROMBASE and ROMSIZE

The configs ROMBASE and ROMSIZE were used in arch/m68k/68360/head-ram.S,
which was removed with commit a3595962d8 ("m68knommu: remove obsolete
68360 support").

Remove the obsolete configs ROMBASE and ROMSIZE.

Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Fixes: a3595962d8 ("m68knommu: remove obsolete 68360 support")
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Greg Ungerer <gerg@linux-m68k.org>

arch/m68k/Kconfig.machine

@@ -439,15 +439,6 @@ config ROM
 	  that can be stored in flash, with possibly the text, and data
 	  regions being copied out to RAM at startup.
 
-config ROMBASE
-	hex "Address of the base of ROM device"
-	default "0"
-	depends on ROM
-	help
-	  Define the address that the ROM region starts at. Some platforms
-	  use this to set their chip select region accordingly for the boot
-	  device.
-
 config ROMVEC
 	hex "Address of the base of the ROM vectors"
 	default "0"
@@ -465,14 +456,6 @@ config ROMSTART
 	  Define the start address of the system image in ROM. Commonly this
 	  is strait after the ROM vectors.
 
-config ROMSIZE
-	hex "Size of the ROM device"
-	default "0x100000"
-	depends on ROM
-	help
-	  Size of the ROM device. On some platforms this is used to setup
-	  the chip select that controls the boot ROM device.
-
 choice
 	prompt "Kernel executes from"
 	help