Remove useless CI

.github/workflows/create_artifacts.yml

@@ -1,38 +0,0 @@
-name: Create artifacts
-
-on:
-  push:
-    tags:
-      - v*-alpha.*
-
-jobs:
-  nightly:
-    name: Build Nighlty ${{ matrix.os }}
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        os: [ubuntu-latest, macos-latest, windows-latest]
-        include:
-          - os: ubuntu-latest
-            artifact_name: meilisearch
-            asset_name: meilisearch-alpha-linux-amd64
-          - os: macos-latest
-            artifact_name: meilisearch
-            asset_name: meilisearch-alpha-macos-amd64
-          - os: windows-latest
-            artifact_name: meilisearch.exe
-            asset_name: meilisearch-alpha-windows-amd64.exe
-    steps:
-      - uses: hecrj/setup-rust-action@master
-        with:
-          rust-version: stable
-      - uses: actions/checkout@v1
-      - name: Build
-        run: cargo build --release --locked
-      - name: Upload binaries to release
-        uses: svenstaro/upload-release-action@v1-release
-        with:
-          repo_token: ${{ secrets.GITHUB_TOKEN }}
-          file: target/release/${{ matrix.artifact_name }}
-          asset_name: ${{ matrix.asset_name }}
-          tag: ${{ github.ref }}