servo: Merge #19452 - style: Remove pretty useless layer of abstraction (from...

servo: Merge #19452 - style: Remove pretty useless layer of abstraction (from emilio:layers-as-an-onion); r=jdm

Source-Repo: https://github.com/servo/servo
Source-Revision: e8593e29633a67e6a8f61a213217a19278aa2739

--HG--
extra : subtree_source : https%3A//hg.mozilla.org/projects/converted-servo-linear
extra : subtree_revision : 1be2c6957976b130222813f9f23016c02c9cd367