freedreno: don't take ownership of the dmabuf fd on import

EGL_EXT_image_dma_buf_import specifies that the importer retains
ownership of the fd, rather then the importee.

Signed-off-by: Rob Clark <robclark@freedesktop.org>

freedreno/freedreno_bo.c

@@ -245,7 +245,6 @@ fd_bo_from_dmabuf(struct fd_device *dev, int fd)
 	lseek(fd, 0, SEEK_CUR);
 
 	bo = bo_from_handle(dev, size, handle);
-	bo->fd = fd;
 
 out_unlock:
 	pthread_mutex_unlock(&table_lock);