x86: dts: Drop unused CONFIG_SPL

This cannot be used since the previous #elif has already dealt with SPL.
Drop it.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/x86/dts/u-boot.dtsi b/arch/x86/dts/u-boot.dtsi
index 50134b2..ca84d18 100644
--- a/arch/x86/dts/u-boot.dtsi
+++ b/arch/x86/dts/u-boot.dtsi
@@ -55,11 +55,7 @@
 		offset = <CONFIG_X86_OFFSET_U_BOOT>;
 	};
 #else
-# ifdef CONFIG_SPL
-	u-boot {
-		offset = <CONFIG_SYS_TEXT_BASE>;
-	};
-# elif defined(CONFIG_HAVE_MICROCODE)
+# ifdef CONFIG_HAVE_MICROCODE
 	/* If there is no SPL then we need to put microcode in U-Boot */
 	u-boot-with-ucode-ptr {
 		offset = <CONFIG_X86_OFFSET_U_BOOT>;