Revert "feat(elevatable): create new mixin"
Revert "feat(elevatable): create new mixin"

This reverts commit 85f249cfdcc0eaceb29cfc4bfec48a7217e65cdd.

vuetifyjs/vuetify,vuetifyjs/vuetify,Webifi/vuetify,vuetifyjs/vuetify,vuetifyjs/vuetify,Phlow2001/vuetify,Phlow2001/vuetify,Phlow2001/vuetify,Phlow2001/vuetify,Webifi/vuetify,Webifi/vuetify