Remove pre-2013 vendor-prefixed -moz- CSS properties
Summary:
Per https://caniuse.com/ and MDN,
- -moz-opacity superseded by unprefixed opacity supported since Firefox 2 released 10/2006
- -moz-border-radius superseded by unprefixed border-radius supported since Firefox 4 released 03/2011
- -moz-box-shadow superseded by unprefixed box-shadow supported since Firefox 4 released 03/2011
- -moz-animation superseded by unprefixed animation supported since Firefox 16 released 08/2012
- -moz-backface-visibility superseded by unprefixed backface-visibility supported since Firefox 16 released 08/2012
- @-moz-keyframes superseded by unprefixed @keyframes supported since Firefox 16 released 08/2012
- -moz-transform superseded by unprefixed transform supported since Firefox 16 released 08/2012
Test Plan: None. Probably installing old browser versions if you don't trust documentation.
Reviewers: O1 Blessed Committers, valerio.bozzolan
Reviewed By: O1 Blessed Committers, valerio.bozzolan
Subscribers: tobiaswiese, valerio.bozzolan, Matthew, Cigaryno
Differential Revision: https://we.phorge.it/D25915