drm/msm: Remove unused fields

These aren't used. Probably left overs when driver was refactored to
support both MDP4 and MDP5.
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>

drivers/gpu/drm/msm/msm_kms.h

@@ -60,11 +60,6 @@ struct msm_kms_funcs {
 
 struct msm_kms {
 	const struct msm_kms_funcs *funcs;
-
-	/* irq handling: */
-	bool in_irq;
-	struct list_head irq_list;    /* list of mdp4_irq */
-	uint32_t vblank_mask;         /* irq bits set for userspace vblank */
 };
 
 static inline void msm_kms_init(struct msm_kms *kms,