Revert "Use jsDelivr CDN until BootstrapCDN gets updated"
Revert "Use jsDelivr CDN until BootstrapCDN gets updated"

BS3 commits: 505171ef5d127e0e9a4ec82641396fd43804ace4

todc/todc-bootstrap,todc/todc-bootstrap,mozillo/todc-bootstrap,todc/todc-bootstrap,up2vs/todc-bootstrap,2947721120/todc-bootstrap,aaroncnhk/todc-bootstrap,2947721120/googlebt4,ztx1491/todc-bootstrap