refactor: remove config-file settings

As of doomemacs/doomemacs@9b8ed397e8e7, bin/doom implicitly loads a
project's .doomrc, where our CI settings will live from now on.

Ref: doomemacs/doomemacs@9b8ed397e8e7

Author: hlissner

.github/workflows/lint-commits.yml

@@ -1,12 +1,5 @@
 name: Lint commits
-on:
-  workflow_call:
-    inputs:
-      config-file:
-        description: "TODO"
-        type: string
-        default: '.github/ci.el'
-
+on: [workflow_call]
 jobs:
   lint-commits:
     timeout-minutes: 10
@@ -18,12 +11,11 @@ jobs:
       - name: Set up Doom Emacs CI
         uses: doomemacs/ci@legacy
 
-      - name: Checkout current project
-        uses: actions/[email protected]
+      - uses: actions/[email protected]
         with.fetch-depth: 0
 
       - name: Run commit linter
-        env.ELFILE: ${{ inputs.config-file }}
-        run: |
-          [[ -f "$ELFILE" ]] || ELFILE=
-          doom ${ELFILE:+-l "$ELFILE"} ci lint-commits ${{ github.event.pull_request.base.sha }} ${{ github.event.pull_request.head.sha }}
+        env:
+          FROM: ${{ github.event.pull_request.base.sha }}
+          TO:   ${{ github.event.pull_request.head.sha }}
+        run: doom ci lint-commits $FROM $TO

.github/workflows/run-tests.yml

@@ -6,10 +6,6 @@ on:
         description: "TODO"
         type: string
         default: "test"
-      config-file:
-        description: "TODO"
-        type: string
-        default: '.github/ci.el'
 
 jobs:
   run-tests:
@@ -22,4 +18,4 @@ jobs:
       - uses: actions/[email protected]
       - uses: doomemacs/ci@legacy
         with.emacs-version: ${{ matrix.emacs-version }}
-      - run: doom -f ${{ inputs.config-file }} ci run-tests ${{ inputs.testdir }}
+      - run: doom ci run-tests ${{ inputs.testdir }}