x86: Remove dead codes wrapped by PARANOID_IRQ_TRIGGERS

PARANOID_IRQ_TRIGGERS is not referenced anywhere in U-Boot.
Remove these dead codes wrapped by it.

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

arch/x86/lib/pcat_interrupts.c

@@ -127,20 +127,4 @@ void configure_irq_trigger(int int_num, bool is_level_triggered)
 	debug("%s: try to set interrupts 0x%x\n", __func__, int_bits);
 	outb((u8)(int_bits & 0xff), ELCR1);
 	outb((u8)(int_bits >> 8), ELCR2);
-
-#ifdef PARANOID_IRQ_TRIGGERS
-	/*
-	 * Try reading back the new values. This seems like an error but is
-	 * not
-	 */
-	if (inb(ELCR1) != (int_bits & 0xff)) {
-		printf("%s: lower order bits are wrong: want 0x%x, got 0x%x\n",
-		       __func__, (int_bits & 0xff), inb(ELCR1));
-	}
-
-	if (inb(ELCR2) != (int_bits >> 8)) {
-		printf("%s: higher order bits are wrong: want 0x%x, got 0x%x\n",
-		       __func__, (int_bits>>8), inb(ELCR2));
-	}
-#endif
 }