video-driver: Drop init_interrupt op

The init_interrupt op is not used out of variant, lets
remove the op and used the functions directly.

Change-Id: I8f97cf503503b7f30e824843a5bd9d93c702241a
Signed-off-by: Stanimir Varbanov <quic_c_svarba@quicinc.com>

driver/vidc/inc/msm_vidc_core.h

@@ -23,7 +23,6 @@ struct msm_vidc_venus_ops {
 	int (*boot_firmware)(struct msm_vidc_core *core);
 	int (*reset_ahb2axi_bridge)(struct msm_vidc_core *core);
 	int (*clock_config_on_enable)(struct msm_vidc_core *core);
-	int (*interrupt_init)(struct msm_vidc_core *core);
 	int (*raise_interrupt)(struct msm_vidc_core *core);
 	int (*clear_interrupt)(struct msm_vidc_core *core);
 	int (*prepare_pc)(struct msm_vidc_core *core);