Merge pull request #1242 from rust-lang/revert-1236-add-webrender-2022

Revert "Add `webrender-2022`"

Author: rylev

collector/benchmarks/README.md

@@ -46,10 +46,6 @@ They mostly consist of real-world crates.
   utilities. Uses huge `match` statements that stress the compiler in unusual
   ways.
 - **webrender**: A web renderer. Used by Firefox and Servo.
-- **webrender-2022**: A web renderer. A large, complex crate used by Firefox
-  and Servo. Webrender isn't released regularly so this is a development
-  version (revision 78502fd). The `-2022` suffix distinguishes it from earlier
-  Webrender versions that used to be used in this benchmark suite.
 - **webrender-wrench**: WebRender's test bench. An executable pulling in large
   dependencies.