ARM: 8023/1: remove remnants of the static DMA mapping

It looks like the static mapping area for DMA was replaced by dynamic
allocation into the vmalloc area by commit e9da6e99 but the
information in Documentation/arm/memory.txt was not removed accordingly.

CONSISTENT_END in arch/arm/include/asm/memory.h has no more users and
can be removed as well.
Signed-off-by: NNicolas Pitre <nico@linaro.org>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Documentation/arm/memory.txt

@@ -44,13 +44,6 @@ fffe0000	fffe7fff	ITCM mapping area for platforms with
 fff00000	fffdffff	Fixmap mapping region.  Addresses provided
 				by fix_to_virt() will be located here.
 
-ffc00000	ffefffff	DMA memory mapping region.  Memory returned
-				by the dma_alloc_xxx functions will be
-				dynamically mapped here.
-
-ff000000	ffbfffff	Reserved for future expansion of DMA
-				mapping region.
-
 fee00000	feffffff	Mapping of PCI I/O space. This is a static
 				mapping within the vmalloc space.
 

arch/arm/include/asm/memory.h

@@ -83,8 +83,6 @@
  */
 #define IOREMAP_MAX_ORDER	24
 
-#define CONSISTENT_END		(0xffe00000UL)
-
 #else /* CONFIG_MMU */
 
 /*