[Bug] Minor memory leak in Move Value filter when "Settings" selected as Move Value Type.

[FiniteSingularity]

When adding a Move Value filter to a source, and using the Settings option for Move Value Type, some data fields are not freed when the filter is destroyed.

To replicate:

1. Add a source to a scene in OBS.
2. Add a Color Correction (or any) filter to that source.
3. Add a Move Value filter to the source, select the Color Correction filter as the Filter, and Settings as the Move Value Type.
4. Quit OBS to see the memory leaks detected.