Revert "[nrf temphack] REVERTME: carry undesired flash map change"

This reverts commit 09b7220.

Signed-off-by: Marti Bolivar <[email protected]>

Author: mbolivar-nordic

boot/zephyr/flash_map_extended.c

@@ -27,7 +27,6 @@ MCUBOOT_LOG_MODULE_DECLARE(mcuboot);
 #error "FLASH_DEVICE_ID could not be determined"
 #endif
 
-#define FLASH_DEVICE_BASE CONFIG_FLASH_BASE_ADDRESS
 static struct device *flash_dev;
 
 struct device *flash_device_get_binding(char *dev_name)