memory: emif: drop unused 'irq_state' member

Driver does not use 'emif_data.irq_state'.

Link: https://lore.kernel.org/r/20240823-b4-cleanup-h-guard-v1-1-01668915bd55@linaro.orgSigned-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

drivers/memory/emif.c

@@ -57,7 +57,6 @@ struct emif_data {
 	u8				temperature_level;
 	u8				lpmode;
 	struct list_head		node;
-	unsigned long			irq_state;
 	void __iomem			*base;
 	struct device			*dev;
 	struct emif_regs		*regs_cache[EMIF_MAX_NUM_FREQUENCIES];