drm/amdkfd: Remove unused variable

kfd_topology_device->cache_count is not used by
other fucntions, so remove it.
Signed-off-by: Ma Jun <Jun.Ma2@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_crat.c

@@ -1131,7 +1131,6 @@ static int kfd_parse_subtype_cache(struct crat_subtype_cache *cache,
 			if (cache->flags & CRAT_CACHE_FLAGS_SIMD_CACHE)
 				props->cache_type |= HSA_CACHE_TYPE_HSACU;
 
-			dev->cache_count++;
 			dev->node_props.caches_count++;
 			list_add_tail(&props->list, &dev->cache_props);
 

drivers/gpu/drm/amd/amdkfd/kfd_topology.h

@@ -128,7 +128,6 @@ struct kfd_topology_device {
 	uint32_t			proximity_domain;
 	struct kfd_node_properties	node_props;
 	struct list_head		mem_props;
-	uint32_t			cache_count;
 	struct list_head		cache_props;
 	struct list_head		io_link_props;
 	struct list_head		p2p_link_props;