Removed Gitea actions workflows.

.gitea/workflows/build.yml

@@ -1,20 +0,0 @@
-name: Build Maubot Plugin Artifact
-on: [push]
-
-jobs:
-  build:
-    name: Build
-    runs-on: ubuntu-latest
-
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@v4
-
-      - name: Build artifact
-        run: zip -v -9 OwncastSentry-v${{env.GITHUB_SHA}}.mbp LICENSE.txt maubot.yaml owncastsentry.py
-
-      - name: Upload artifact
-        uses: actions/upload-artifact@v3
-        with:
-          name: Maubot Plugin
-          path: OwncastSentry-v${{env.GITHUB_SHA}}.mbp

.gitea/workflows/lint.yml

@@ -1,19 +0,0 @@
-name: Lint Source Code
-on: [push]
-
-jobs:
-  lint:
-    name: Lint
-    runs-on: ubuntu-latest
-
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@v4
-
-      - name: Setup Python environment
-        uses: actions/setup-python@v5
-        with:
-          python-version: 3.13
-
-      - name: Run linter
-        uses: psf/black@stable