ci: remove checks

Author: jnicoulaud-ledger

.github/workflows/ci.yml

@@ -54,10 +54,6 @@ jobs:
         if: matrix.java == 'graalvm@21' && steps.setup-java-graalvm-21.outputs.cache-hit == 'false'
         run: sbt +update
 
-      - name: Check headers and formatting
-        if: matrix.java == 'graalvm@21' && matrix.os == 'ubuntu-latest'
-        run: sbt '++ ${{ matrix.scala }}' headerCheckAll scalafmtCheckAll 'project /' scalafmtSbtCheck
-
       - name: Test
         run: sbt '++ ${{ matrix.scala }}' test