change(ci): remove unused github workflow

.github/workflows/artifacts.yml

@@ -1,60 +0,0 @@
-# This workflow will create artifacts for all merges into master
-# It will include linux, macos binaries with assets and an msi installer.
-
-name: Artifacts
-
-on:
-  schedule:
-    - cron:  '0 0 * * *'
-
-jobs:
-  release-macos:
-    runs-on: [macos-latest]
-    steps:
-      # LFS Checkout from Gitlab
-      - name: Gitlab LFS Checkout
-        run: |
-          mkdir -p $RUNNER_WORKSPACE/veloren
-          git init $RUNNER_WORKSPACE/veloren
-          cd $RUNNER_WORKSPACE/veloren
-          git remote add origin https://gitlab.com/veloren/veloren.git/
-          git -c protocol.version=2 fetch --no-tags --prune --progress --no-recurse-submodules --depth=1 origin +$GITHUB_SHA:refs/remotes/origin/$(echo $GITHUB_REF | cut -c 12-)
-          git checkout --progress --force -B $(echo $GITHUB_REF | cut -c 12-) refs/remotes/origin/$(echo $GITHUB_REF | cut -c 12-)
-          git log -1
-      # Prepare toolchain
-      - name: Pull toolchain
-        uses: actions-rs/toolchain@v1
-        with:
-          profile: minimal
-      # Cache
-      - name: Cache cargo registry
-        uses: actions/cache@v1
-        with:
-          path: ~/.cargo/registry
-          key: ${{ runner.os }}-cargo-registry-${{ hashFiles('**/Cargo.lock') }}
-      - name: Cache cargo index
-        uses: actions/cache@v1
-        with:
-          path: ~/.cargo/git
-          key: ${{ runner.os }}-cargo-index-${{ hashFiles('**/Cargo.lock') }}
-      - name: Cache cargo build
-        uses: actions/cache@v1
-        with:
-          path: target
-          key: ${{ runner.os }}-cargo-build-target-${{ hashFiles('**/Cargo.lock') }}
-      # Build & Package airshipper
-      - name: Build
-        run: cargo build
-      - name: Package
-        run: |
-          mkdir -p artifact/
-          mkdir -p artifact/assets
-          cp -r assets/ artifact/assets/
-          cp target/debug/veloren-server-cli artifact/
-          cp target/debug/veloren-voxygen artifact/
-      # Upload artifact
-      - name: Upload artifact
-        uses: actions/upload-artifact@v1
-        with:
-          name: airshipper-macos
-          path: artifact/