ci: Remove `ci.yaml`

We are no longer relying on GitHub CI.

.github/workflows/ci.yaml

@@ -1,61 +0,0 @@
-name: CI
-
-on:
-  push:
-    branches: [master]
-  pull_request:
-    branches: [master]
-
-jobs:
-  build:
-    name: Build & Test
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v3
-      - uses: dtolnay/rust-toolchain@1.67
-      - run: cargo build --all-features
-        env:
-          RUSTFLAGS: -D warnings
-      - name: Run tests
-        run: |
-          cargo test --all --all-features
-
-          # Workaround for client document tests dependent on the remote
-          # helper. Tests which rely on these should be marked #[ignore] and
-          # whitelisted here.
-          #
-          # Marking them as 'ignored' will allow local testing to work as
-          # expected, yet allow these document tests to be covered during
-          # integration testing.
-          cargo install --locked --debug --path ./radicle-remote-helper
-          cargo test --all --all-features rad_patch -- --ignored
-          cargo test --all --all-features rad_workflow -- --ignored
-
-  docs:
-    name: Docs
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v3
-      - uses: dtolnay/rust-toolchain@1.67
-      - run: cargo doc --all --all-features
-        env:
-          RUSTDOCFLAGS: -D warnings
-
-  lint:
-    name: Lint
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v3
-      - uses: actions/cache@v3
-        with:
-          path: |
-            ~/.cargo/registry
-            ~/.cargo/git
-            ~/.rustup/toolchains
-            target
-          key: ci-lint-${{ hashFiles('**/Cargo.lock') }}
-      - run: rustup component add clippy rustfmt
-      - run: cargo clippy --all --tests
-        env:
-          RUSTFLAGS: -D warnings
-      - run: cargo fmt --all -- --check