Remove C1 sequential and fix Padlock sweep animation on Phone 2A Plus

[bleelblep]

Issue Summary

• Remove the C1 sequential feature from the codebase.
• Fix the Padlock sweep animation, which is currently not working on the Phone 2A / 2A Plus models.

[bleelblep]

C1 Sequential is left over test code that was never removed.

[bleelblep]

C1 Sequential has been removed and initial support for 2a devices has been done. Issue may be fixed but unknown since I don't own any 2a devices.