Remove debugger tools from CI (#873)

Author: fendor

.github/workflows/test.yml

@@ -32,15 +32,6 @@ jobs:
         run: ghcup install cabal recommended
       - name: Install GHC
         run: ghcup install ghc ${{matrix.ghc}}
-      - name: 'Install `tree` for MacOs'
-        run: |
-          brew update
-          brew install tree
-        if: runner.os == 'macOS'
-      - name: 'Install `tree` for Windows'
-        run: |
-          choco install tree
-        if: runner.os == 'Windows'
       # Pre-fetch HLS binaries before the tests because otherwise
       # we run into timeouts. Downloading takes longer, since we download
       # per HLS version one HLS binary per GHC version.
@@ -77,7 +68,6 @@ jobs:
         # This is a poor man's workaround that after test execution,
         # the test-workspace still contains binaries and caches.
         run: |
-          tree -a test-workspace/
           rm -rf test-workspace/
         shell: bash
       - name: Package tested extension