memblock: Kill ARCH_POPULATES_NODE_MAP once more

The Kconfig symbol ARCH_POPULATES_NODE_MAP was killed in v3.3. After
that it popped up again in microblaze and metag. Nobody noticed,
probably because these Kconfig symbols are entirely unused and these
architectures both select HAVE_MEMBLOCK_NODE_MAP. Anyhow, these two
entries can also be killed.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Acked-by: Michal Simek <monstr@monstr.eu>
Signed-off-by: James Hogan <james.hogan@imgtec.com>

arch/metag/mm/Kconfig

@@ -98,9 +98,6 @@ config MAX_ACTIVE_REGIONS
 	default "2" if SPARSEMEM
 	default "1"
 
-config ARCH_POPULATES_NODE_MAP
-	def_bool y
-
 config ARCH_SELECT_MEMORY_MODEL
 	def_bool y
 

arch/microblaze/Kconfig

@@ -38,9 +38,6 @@ config RWSEM_GENERIC_SPINLOCK
 config ZONE_DMA
 	def_bool y
 
-config ARCH_POPULATES_NODE_MAP
-	def_bool y
-
 config RWSEM_XCHGADD_ALGORITHM
 	bool