Remove non-working problem matchers. (#88)

README.md

@@ -140,26 +140,12 @@ If you need to scan for unusual files, you can use the `additional_files` key.
        additional_files: 'run finish'
 ```
 
-## Disable problem matcher
-
-If you do not want to have the problem-matcher annotate files, you can disable it
-by setting `disable_matcher` to `true`.
-
-```yaml
-   ...
-   - name: Run ShellCheck
-     uses: ludeeus/action-shellcheck@master
-     with:
-       disable_matcher: true
-```
-
 ## Change output format
 
 Shellcheck can print output in these formats: `checkstyle`, `diff`, `gcc`, `json`, `json1`, `quiet`, `tty`. See some examples [here](https://github.com/koalaman/shellcheck/wiki/Integration#pick-the-output-format-that-makes-your-life-easier).
-Only `tty` and `gcc` produce file annotations via problem matcher, default is `gcc`.
 
-- `tty` has multi-line log messages, but all annotations are reported as errors
-- `gcc` has single-line log messages, so it's easier to parse with a problem matcher (including correct severity annotation)
+- `tty` has multi-line log messages
+- `gcc` has single-line log messages
 
 ```yaml
    ...

action.yaml

@@ -35,6 +35,7 @@ inputs:
     description: "Set to true to skip using problem-matcher"
     required: false
     default: "false"
+    deprecationMessage: "There are no problem-matchers, this setting does not do anything."
   format:
     description: "Output format (checkstyle, diff, gcc, json, json1, quiet, tty)"
     required: false
@@ -56,17 +57,6 @@ branding:
 runs:
   using: "composite"
   steps:
-    - name: Enable problem-matcher
-      shell: bash
-      env:
-        INPUT_FORMAT: ${{ inputs.format }}
-        INPUT_DISABLE_MATCHER: ${{ inputs.disable_matcher }}
-      run: |
-        problem_matcher_file="${{ github.action_path }}/.github/problem-matcher-${INPUT_FORMAT}.json"
-        if [[ "${INPUT_DISABLE_MATCHER}" != "true" && -f "$problem_matcher_file"  ]]; then
-          echo "::add-matcher::$problem_matcher_file"
-        fi
-
     - name: Download shellcheck
       shell: bash
       env:
@@ -230,13 +220,6 @@ runs:
 
         set +f # re-enable globbing
 
-    - name: Remove problem-matcher
-      shell: bash
-      run: |
-        echo "::remove-matcher owner=shellcheck-gcc::"
-        echo "::remove-matcher owner=shellcheck-gcc-notice::"
-        echo "::remove-matcher owner=shellcheck-tty::"
-
     - name: Exit action
       shell: bash
       run: exit ${{steps.check.outputs.statuscode}}