x86: Remove unnecessary call to initr_enable_interrupts()

Actually initr_enable_interrupts() was never called in an x86 build
due to it was wrapped by CONFIG_x86 (typo of X86).

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>

common/board_r.c

@@ -839,7 +839,7 @@ init_fnc_t init_sequence_r[] = {
 	initr_kgdb,
 #endif
 	interrupt_init,
-#if defined(CONFIG_ARM) || defined(CONFIG_x86)
+#if defined(CONFIG_ARM)
 	initr_enable_interrupts,
 #endif
 #ifdef CONFIG_X86