The voting and decisions surrounding STYLE-404 mean we shouldn't automatically expand stuff like Vol., Pt. and rmx anymore, so that should be removed from guess case too.

Things that should go away:
From GuessCase/Handler/Base.js:
VolumeNumberStyle
PartNumberStyle
SeriesNumberStyle
VersusStyle

From GuessCase/Mode/Base.js:
// remix variants
// extra title information ("Extendet" isn't affected by that style decision but it seems overspecific, why this misspelling and not others?)
// without (probably - but it should stay as w/o, not become W/O as it used to, I'd imagine)
// Handle Part/Volume abbreviations
// Get parts out of brackets