block/z2ram: Remove duplicate external declarations
block/z2ram: Remove duplicate external declarations

Remove the external declarations for m68k_realnum_memory and m68k_memory,
which are already provided by <asm/setup.h>, to avoid conflicts later.

Signed-off-by: Geert Uytterhoeven <0da414d9d963da4039c2a0525b1844228075aa58@linux-m68k.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs