ARM: highbank: remove unused memory.h

memory.h is empty and no longer needed to build, so remove it.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
diff --git a/arch/arm/mach-highbank/include/mach/memory.h b/arch/arm/mach-highbank/include/mach/memory.h
deleted file mode 100644
index 40a8c17..0000000
--- a/arch/arm/mach-highbank/include/mach/memory.h
+++ /dev/null
@@ -1 +0,0 @@
-/* empty */