[PATCH] remove obsolete himem.ld from m68knommu sub-arch

This removes the last remaining obsolete m68knommu sub-architecture
linker script. No longer needed with the new merge script.

arch/m68knommu/platform/68VZ328/de2/himem.ld

-MEMORY 
-	{
-        romvec : ORIGIN = 0x01e00000, LENGTH = 1k
-        flash  : ORIGIN = 0x01e00400, LENGTH = 2M - 1k
-        eflash : ORIGIN = 0x02000000, LENGTH = 0
-        ramvec : ORIGIN = 0x00000000, LENGTH = 1k
-        ram    : ORIGIN = 0x00010000, LENGTH = 30M - 64k
-        eram   : ORIGIN = 0x01e00000, LENGTH = 0
-	}
-
-INCLUDE arch/m68knommu/platform/68VZ328/de2/fixed.ld