render/vulkan: remove stage_cb conditional

We always have a stage_cb at this point.

render/vulkan/renderer.c

@@ -953,17 +953,12 @@ static void vulkan_end(struct wlr_renderer *wlr_renderer) {
 	// We don't need a semaphore from the stage/transfer submission
 	// to the render submissions since they are on the same queue
 	// and we have a renderpass dependency for that.
-	uint64_t stage_timeline_point;
+	uint64_t stage_timeline_point = end_command_buffer(stage_cb, renderer);
-	VkTimelineSemaphoreSubmitInfoKHR stage_timeline_submit_info;
-	uint64_t stage_wait_timeline_point;
-	VkPipelineStageFlags stage_wait_stage;
-	if (stage_cb != NULL) {
-		stage_timeline_point = end_command_buffer(stage_cb, renderer);
 	if (stage_timeline_point == 0) {
 		return;
 	}
 
-		stage_timeline_submit_info = (VkTimelineSemaphoreSubmitInfoKHR){
+	VkTimelineSemaphoreSubmitInfoKHR stage_timeline_submit_info = {
 		.sType = VK_STRUCTURE_TYPE_TIMELINE_SEMAPHORE_SUBMIT_INFO_KHR,
 		.signalSemaphoreValueCount = 1,
 		.pSignalSemaphoreValues = &stage_timeline_point,
@@ -978,6 +973,8 @@ static void vulkan_end(struct wlr_renderer *wlr_renderer) {
 	stage_sub->pSignalSemaphores = &renderer->timeline_semaphore;
 	++submit_count;
 
+	uint64_t stage_wait_timeline_point;
+	VkPipelineStageFlags stage_wait_stage;
 	if (renderer->stage.last_timeline_point > 0) {
 		stage_wait_timeline_point = renderer->stage.last_timeline_point;
 		stage_wait_stage = VK_PIPELINE_STAGE_ALL_COMMANDS_BIT;
@@ -989,7 +986,6 @@ static void vulkan_end(struct wlr_renderer *wlr_renderer) {
 	}
 
 	renderer->stage.last_timeline_point = stage_timeline_point;
-	}
 
 	uint64_t render_timeline_point = end_command_buffer(render_cb, renderer);
 	if (render_timeline_point == 0) {