FROMLIST: media: iris: Remove unnecessary re-initialization of flush completion

Currently, The flush completion signal is being re-initialized even
though no response is expected during a sequence change.

Simplify the code by removing re-initialization of flush completion
signal as it is redundant.

Cc: stable@vger.kernel.org
Fixes: 84e17ad ("media: iris: add support for dynamic resolution change")
Link: https://lore.kernel.org/linux-arm-msm/20250509-video-iris-hevc-vp9-v5-16-59b4ff7d331c@quicinc.com/
Acked-by: Vikash Garodia <quic_vgarodia@quicinc.com>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8550-QRD
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8550-HDK
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8650-QRD
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8650-HDK
Tested-by: Vikash Garodia <quic_vgarodia@quicinc.com> # on sa8775p-ride
Signed-off-by: Dikshita Agarwal <quic_dikshita@quicinc.com>

Author: Dikshita Agarwal

drivers/media/platform/qcom/iris/iris_hfi_gen1_response.c

@@ -201,7 +201,6 @@ static void iris_hfi_gen1_event_seq_changed(struct iris_inst *inst,
 	iris_hfi_gen1_read_changed_params(inst, pkt);
 
 	if (inst->state != IRIS_INST_ERROR && !(inst->sub_state & IRIS_INST_SUB_FIRST_IPSC)) {
-		reinit_completion(&inst->flush_completion);
 
 		flush_pkt.shdr.hdr.size = sizeof(struct hfi_session_flush_pkt);
 		flush_pkt.shdr.hdr.pkt_type = HFI_CMD_SESSION_FLUSH;