Revert "Themes: Add versioning to the theme feature"

This reverts commit 4aad1e19fda766fbac97f1677304b81a716f1b5f.
Revert "Build Screenrecorder"

This reverts commit 438542d657b14a969ee6c2f4ae9ed3f83c380c70.
Revert "Build OmniTorch"

This reverts commit ca114c67fc3a689b66af07674f82fc94dc29708f.
Revert "Theme Engine [2/8]"

This reverts commit 79ba33757122a9b0e255266bc72e2ccb1baa7c71.
Remove some things