Remove transition code for "unified extraction" of scripts and styles.
Remove transition code for "unified extraction" of scripts and styles.

Closes #24.

DavidCPhillips/spfjs,theanh/spfjs,scrapp-uk/spfjs,theanh/spfjs,youtube/spfjs,nicksay/spfjs,tchiotludo/spfjs,nicksay/spfjs,nicksay/spfjs,nicksay/spfjs,tchiotludo/spfjs,scrapp-uk/spfjs,youtube/spfjs,youtube/spfjs,youtube/spfjs,youtube/spfjs,DavidCPhillips/spfjs,theanh/spfjs,nicksay/spfjs,theanh/spfjs,DavidCPhillips/spfjs,scrapp-uk/spfjs,tchiotludo/spfjs,scrapp-uk/spfjs,tchiotludo/spfjs,scrapp-uk/spfjs,DavidCPhillips/spfjs,tchiotludo/spfjs,theanh/spfjs