Remove GHActions to announce file changes

Removes the GHActions that would create issues when files change.
The files in question were moved to the backend-repo

.github/announcement_templates/updates-to-initial-data.md

@@ -1,20 +0,0 @@
----
-title: The initial-data.json got updated
-assignees: tsiegleauq, ostcar, normanjaeckel, jsangmeister
-labels: documentation, OpenSlides4, meta
----
-
-# Changes to `initial-data.json` have just been added to OpenSlides
-
-Please acknowledge the recent changes to `initial-data.json` and update your projects accordingly.
-
-### Current `initial-data.json`
-[docker/initial-data.json]({{ env.GITHUB_SERVER_URL }}/{{ env.GITHUB_REPOSITORY }}/blob/master/docker/initial-data.json)
-
-### Corresponding Commit:
-[{{ env.GITHUB_SHA }}]({{ env.GITHUB_SERVER_URL }}/{{ env.GITHUB_REPOSITORY }}/commit/{{ env.GITHUB_SHA }})
-
-## Affected Projects
-
-### Manage
-https://github.com/OpenSlides/openslides-manage-service

.github/announcement_templates/updates-to-models.md

@@ -1,29 +0,0 @@
----
-title: The models.yml got updated
-assignees: tsiegleauq, ostcar, normanjaeckel, jsangmeister, r-peschke, GabrielInTheWorld
-labels: documentation, OpenSlides4, meta
----
-
-# Changes to `models.yml` have just been added to OpenSlides
-
-Please acknowledge the recent changes to `models.yml` and update your projects accordingly.
-
-### Current `models.yml`
-[docs/models.yml]({{ env.GITHUB_SERVER_URL }}/{{ env.GITHUB_REPOSITORY }}/blob/master/docs/models.yml)
-
-### Corresponding Commit:
-[{{ env.GITHUB_SHA }}]({{ env.GITHUB_SERVER_URL }}/{{ env.GITHUB_REPOSITORY }}/commit/{{ env.GITHUB_SHA }})
-
-## Affected Projects
-
-### Backend
-https://github.com/OpenSlides/openslides-backend
-
-### Client
-https://github.com/OpenSlides/openslides-client
-
-### Autoupdate
-https://github.com/OpenSlides/openslides-autoupdate-service
-
-### Manage
-https://github.com/OpenSlides/openslides-manage-service

.github/announcement_templates/updates-to-permissions.md

@@ -1,29 +0,0 @@
----
-title: The permission.yml got updated
-assignees: tsiegleauq, ostcar, normanjaeckel, jsangmeister, r-peschke, GabrielInTheWorld
-labels: documentation, OpenSlides4, meta
----
-
-# Changes to `permission.yml` have just been added to OpenSlides
-
-Please acknowledge the recent changes to `permission.yml` and update your projects accordingly.
-
-### Current `permission.yml`
-[docs/permission.yml]({{ env.GITHUB_SERVER_URL }}/{{ env.GITHUB_REPOSITORY }}/blob/master/docs/permission.yml)
-
-### Corresponding Commit:
-[{{ env.GITHUB_SHA }}]({{ env.GITHUB_SERVER_URL }}/{{ env.GITHUB_REPOSITORY }}/commit/{{ env.GITHUB_SHA }})
-
-## Affected Projects
-
-### Backend
-https://github.com/OpenSlides/openslides-backend
-
-### Client
-https://github.com/OpenSlides/openslides-client
-
-### Autoupdate
-https://github.com/OpenSlides/openslides-autoupdate-service
-
-### Manage
-https://github.com/OpenSlides/openslides-manage-service

.github/workflows/announce-initial-data-updates.yml

@@ -1,24 +0,0 @@
----
-name: Announce initial-data.json updates
-on:
-  push:
-    branches:
-      - master
-    paths:
-      - 'docker/initial-data.json'
-
-jobs:
-  announce-update:
-    name: 'Announce updates to initial-data.json'
-    if: ${{ github.event.pull_request.merged }}
-    runs-on: ubuntu-latest
-    steps:
-      - name: Check out code
-        uses: actions/checkout@v2
-
-      - name: Create Issue
-        uses: JasonEtco/create-an-issue@v2
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        with:
-          filename: .github/announcement_templates/updates-to-initial-data.md

.github/workflows/announce-model-updates.yml

@@ -1,24 +0,0 @@
----
-name: Announce model updates
-on:
-  push:
-    branches:
-      - master
-    paths:
-      - 'docs/models.yml'
-
-jobs:
-  announce-update:
-    name: 'Announce updates to models.yml'
-    if: ${{ github.event.pull_request.merged }}
-    runs-on: ubuntu-latest
-    steps:
-      - name: Check out code
-        uses: actions/checkout@v2
-
-      - name: Create Issue
-        uses: JasonEtco/create-an-issue@v2
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        with:
-          filename: .github/announcement_templates/updates-to-models.md

.github/workflows/announce-permission-updates.yml

@@ -1,24 +0,0 @@
----
-name: Announce permission updates
-on:
-  push:
-    branches:
-      - master
-    paths:
-      - 'docs/permission.yml'
-
-jobs:
-  announce-update:
-    name: 'Announce updates to permission.yml'
-    if: ${{ github.event.pull_request.merged }}
-    runs-on: ubuntu-latest
-    steps:
-      - name: Check out code
-        uses: actions/checkout@v2
-
-      - name: Create Issue
-        uses: JasonEtco/create-an-issue@v2
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        with:
-          filename: .github/announcement_templates/updates-to-permissions.md