memory: mvebu-devbus: Remove unused variable

This variable is not being used anywhere and it's only forgotten
garbage that should have been removed in the previous commit:

  commit 9b6e4c0a
  Author: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
  Date:   Fri Jul 26 10:17:38 2013 -0300

  memory: mvebu-devbus: Remove address decoding window workaround
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>

drivers/memory/mvebu-devbus.c

@@ -44,14 +44,6 @@
 #define READ_PARAM_OFFSET	0x0
 #define WRITE_PARAM_OFFSET	0x4
 
-static const char * const devbus_wins[] = {
-	"devbus-boot",
-	"devbus-cs0",
-	"devbus-cs1",
-	"devbus-cs2",
-	"devbus-cs3",
-};
-
 struct devbus_read_params {
 	u32 bus_width;
 	u32 badr_skew;