microblaze: spl: drop boot_linux

Drop boot_linux variable as it is not assigned anywhere. Now that there is
no variable controlling linux boot in spl_start_uboot(), make this
function always return false when falcon mode is enabled.

Signed-off-by: Ovidiu Panait <ovpanait@gmail.com>
Link: https://lore.kernel.org/r/20230125164157.1638680-2-ovpanait@gmail.com
Signed-off-by: Michal Simek <michal.simek@amd.com>
diff --git a/arch/microblaze/cpu/spl.c b/arch/microblaze/cpu/spl.c
index b9ff9c3..eaa095b 100644
--- a/arch/microblaze/cpu/spl.c
+++ b/arch/microblaze/cpu/spl.c
@@ -14,8 +14,6 @@
 #include <asm/u-boot.h>
 #include <linux/stringify.h>
 
-bool boot_linux;
-
 void board_boot_order(u32 *spl_boot_list)
 {
 	spl_boot_list[0] = BOOT_DEVICE_NOR;
@@ -44,10 +42,7 @@
 
 int spl_start_uboot(void)
 {
-	if (boot_linux)
-		return 0;
-
-	return 1;
+	return 0;
 }
 #endif /* CONFIG_SPL_OS_BOOT */