Merge pull request #184 from berquist/remove-regressionfiles-txt

remove now-unused regressionfiles.txt

Author: berquist

.pre-commit-config.yaml

@@ -8,6 +8,4 @@ repos:
   - repo: https://github.com/pre-commit/pre-commit-hooks
     rev: "v4.5.0"
     hooks:
-      - id: file-contents-sorter
-        files: "regressionfiles.txt"
-        args: ["--unique"]
+      - id: check-yaml