drm/amdkfd: Comment out the unused variable use_static in pm_map_queues_v9

To fix the warning about unused value,
remove the use_static and use the parameter is_static directly.
Signed-off-by: Jesse Zhang <Jesse.Zhang@amd.com>
Suggested-by: Felix Kuehling <felix.kuehling@amd.com>
Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdkfd/kfd_packet_manager_v9.c

@@ -213,7 +213,6 @@ static int pm_map_queues_v9(struct packet_manager *pm, uint32_t *buffer,
 		struct queue *q, bool is_static)
 {
 	struct pm4_mes_map_queues *packet;
-	bool use_static = is_static;
 
 	packet = (struct pm4_mes_map_queues *)buffer;
 	memset(buffer, 0, sizeof(struct pm4_mes_map_queues));
@@ -234,7 +233,7 @@ static int pm_map_queues_v9(struct packet_manager *pm, uint32_t *buffer,
 
 	switch (q->properties.type) {
 	case KFD_QUEUE_TYPE_COMPUTE:
-		if (use_static)
+		if (is_static)
 			packet->bitfields2.queue_type =
 		queue_type__mes_map_queues__normal_latency_static_queue_vi;
 		break;
@@ -244,7 +243,6 @@ static int pm_map_queues_v9(struct packet_manager *pm, uint32_t *buffer,
 		break;
 	case KFD_QUEUE_TYPE_SDMA:
 	case KFD_QUEUE_TYPE_SDMA_XGMI:
-		use_static = false; /* no static queues under SDMA */
 		if (q->properties.sdma_engine_id < 2 &&
 		    !pm_use_ext_eng(q->device->kfd))
 			packet->bitfields2.engine_sel = q->properties.sdma_engine_id +