Disable Appveyor Crowdin sync (#18340)
Part of #17878
Summary of the issue:
Crowdin synchronization is now ready to happen via GitHub actions.
As such, we don't want AppVeyor conflicting with GitHub actions
synchronizing.
Description of user facing changes:
none
Description of developer facing changes:
Disable AppVeyor crowdin sync. 2025.2 betas will sync with Crowdin via
GitHub actions
Description of development approach:
comment out line
Testing strategy:
Test after we merge master to beta
