deinterlace: Drop field-order field if outputting progressive
deinterlace: Drop "field-order" field while transforming caps
Like other basetransform subclasses are doing, drop field
which can be converted by deinterlace.
deinterlace: Drop field-order field if outputting progressive
Progressive with field-order doesn't make sense
Requires validate change gst-integration-testsuites!105 (merged)
Edited by Seungha Yang