remove cross-repo dispatch workflows

These triggered source's release workflow on gamedir pushes. In the
monorepo a push to master triggers it directly, and GitHub ignores
workflow files outside the repository root anyway.

gamedir-languages/.github/workflows/trigger-source.yml

@@ -1,30 +0,0 @@
-name: trigger-source
-
-on:
-  push:
-    branches:
-      - 'main'
-      - 'master'
-
-permissions:
-  actions: write
-
-jobs:
-  trigger:
-    runs-on: ubuntu-latest
-    if: github.repository_owner == '1dot13'
-    steps:
-      - uses: actions/github-script@v6
-        with:
-          # add a valid token as secret to 1dot13 organisation
-          github-token: ${{ secrets.DISPATCH_1DOT13_SOURCE }}
-          script: |
-            github.rest.actions.createWorkflowDispatch({
-              owner: '1dot13',
-              repo: 'source',
-              workflow_id: 'release.yml',
-              ref: 'master',
-              inputs: {
-                assemble_release: true
-              }
-            });

gamedir/.github/workflows/trigger-source.yml

@@ -1,30 +0,0 @@
-name: trigger-source
-
-on:
-  push:
-    branches:
-      - 'main'
-      - 'master'
-
-permissions:
-  actions: write
-
-jobs:
-  trigger:
-    runs-on: ubuntu-latest
-    if: github.repository_owner == '1dot13'
-    steps:
-      - uses: actions/github-script@v8
-        with:
-          # add a valid token as secret to 1dot13 organisation
-          github-token: ${{ secrets.DISPATCH_1DOT13_SOURCE }}
-          script: |
-            github.rest.actions.createWorkflowDispatch({
-              owner: '1dot13',
-              repo: 'source',
-              workflow_id: 'release.yml',
-              ref: 'master',
-              inputs: {
-                assemble_release: true
-              }
-            });