Remove a forward declaration of dma_buf in <nvgpu/vm.h>. This
forward declaration is no longer necessary since all usage of
dma_bufs has been removed from common code!
JIRA NVGPU-224
JIRA NVGPU-30
Change-Id: I0948d8b99efc6429f7a6d122ef3655d670205d75
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1598934
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>