drm/amdgpu: cleanup amdgpu_pte_update_params

kptr is not used any more.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c

@@ -107,14 +107,6 @@ struct amdgpu_pte_update_params {
 	 * DMA addresses to use for mapping, used during VM update by CPU
 	 */
 	dma_addr_t *pages_addr;
-
-	/**
-	 * @kptr:
-	 *
-	 * Kernel pointer of PD/PT BO that needs to be updated,
-	 * used during VM update by CPU
-	 */
-	void *kptr;
 };
 
 /**