Revert "Add the style context provider with FALLBACK priority"
Revert "Add the style context provider with FALLBACK priority"

This reverts commit a264918ad22973c69897c559260e77cb14018235.

https://bugzilla.gnome.org/show_bug.cgi?id=750559

rvu95/vte,rvu95/vte,saitoha/vte-sixel,thestinger/vte-ng,thestinger/vte-ng,rvu95/vte,saitoha/vte-sixel,saitoha/vte-sixel,rvu95/vte,thestinger/vte-ng