We don't need to run 'make setup' for the various linting targets

.github/workflows/build.yml

@@ -30,25 +30,21 @@ jobs:
     steps:
     - run: sudo apt-get install astyle
     - uses: actions/checkout@v2
-    - run: make setup
     - run: make check-astyle
   check-shellcheck:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v2
-    - run: make setup
     - run: make shellcheck
   check-cpplint:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v2
-    - run: make setup
     - run: make cpplint
   find-filename-conflicts:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v2
-    - run: make setup
     - run: make find-filename-conflicts 
   publish-arduino-package-on-every-commit:
     runs-on: ubuntu-latest