In gk20a_cde_convert, we already unmap surface
and then again try to unmap if it is mapped
Remove this logically dead code
Coverity id : 2477002
Bug 200291879
Change-Id: I66dbf43d0475403be27d5acee826d8037e71d4d8
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: http://git-master/r/1455974
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: svccoveritychecker <svccoveritychecker@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Alex Waterman <alexw@nvidia.com>