Update CI procedures.

.github/workflows/push-build.yml

@@ -1,20 +0,0 @@
-name: Rust
-
-on: push
-
-jobs:
-  build:
-
-    runs-on: ubuntu-latest
-
-    steps:
-    - uses: actions/checkout@v1
-    - name: Pre-build
-      run: sudo apt install -y libdbus-1-dev pkg-config libdbus-1-3
-    - name: Build
-      run: cargo build --verbose --release
-      env:
-        RUST_BACKTRACE: 1
-    - name: Strip
-      run: strip target/release/tmux-helper
-

.github/workflows/release-upload.yml

@@ -1,25 +0,0 @@
-name: Rust
-
-on: release
-
-jobs:
-  build:
-
-    runs-on: ubuntu-latest
-
-    steps:
-    - uses: actions/checkout@v1
-    - name: Pre-build
-      run: sudo apt install -y libdbus-1-dev pkg-config libdbus-1-3
-    - name: Build
-      run: cargo build --verbose --release
-      env:
-        RUST_BACKTRACE: 1
-    - name: Strip
-      run: strip target/release/tmux-helper
-    - name: Upload to release
-      uses: JasonEtco/upload-to-release@master
-      with:
-        args: target/release/tmux-helper application/x-pie-executable
-      env:
-        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}