[spaceship] Remove unused params in ConnectAPI::Device

[getaaron]

Checklist

• I've run bundle exec rspec from the root directory to see all new and existing tests pass
• I've followed the fastlane code style and run bundle exec rubocop -a to ensure the code style is valid
• I see several green ci/circleci builds in the "All checks have passed" section of my PR (connect CircleCI to GitHub if not)
• I've read the Contribution Guidelines
• I've updated the documentation if necessary.

Motivation and Context

• find_by_udid takes a platform param which is never used
• find_or_create takes an include_disabled param which is never used

Description

This PR deletes them since they don't do anything.

Fastlane doesn't call them but these may be (very minor) breaking changes for anyone calling these methods manually so we should be sure to mention it in the release notes.

Testing Steps

Just run rspec and the existing tests continue to pass since the parameters are never used by any code path.

[rogerluan]

💪