VideoCommon: remove Cache Displaylist

This option was known to break every second game and only boost a bit.
It also seems to be broken because of streaming into pinned memory and buffer storage buffers.

v2: also remove dlc_desc
VideoCommon: small VertexLoader(Manager)? refactoring
GameSettings: wipe cache display lists
Merge pull request #13 from degasus/dlCacheRemove

Remove Display List caching.