gpu: host1x: Remove unused 'struct host1x_cmdbuf'

The struct host1x_cmdbuf is unused, let's remove it.
Signed-off-by: NDmitry Osipenko <digetx@gmail.com>
Reviewed-by: NErik Faye-Lund <kusmabite@gmail.com>
Reviewed-by: NMikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: NThierry Reding <treding@nvidia.com>

drivers/gpu/host1x/job.h

@@ -27,13 +27,6 @@ struct host1x_job_gather {
 	bool handled;
 };
 
-struct host1x_cmdbuf {
-	u32 handle;
-	u32 offset;
-	u32 words;
-	u32 pad;
-};
-
 struct host1x_job_unpin_data {
 	struct host1x_bo *bo;
 	struct sg_table *sgt;