Remove non-Maud benchmarks (#252)

There's already [template-benchmarks-rs](https://github.com/djc/template-benchmarks-rs), so we don't need to maintain a separate set here.

The Maud-specific benchmarks are kept, as they're still useful for testing future optimizations.

.github/workflows/ci.yml

@@ -27,7 +27,7 @@ jobs:
         components: clippy
 
     - name: Run tests
-      run: cargo test --workspace
+      run: cargo test --workspace --all-targets
 
     - name: Check Clippy
       run: cargo clippy --workspace --all-targets -- -D warnings
@@ -53,25 +53,6 @@ jobs:
     - name: Check build
       run: cargo check --workspace --all-features --all-targets
 
-  benchmarks:
-    name: Benchmarks
-    runs-on: ubuntu-latest
-
-    steps:
-
-    - name: Check out repository
-      uses: actions/checkout@v2
-
-    - name: Install Rust
-      uses: actions-rs/toolchain@v1
-      with:
-        toolchain: nightly
-        profile: minimal
-        override: true
-
-    - name: Run benchmarks
-      run: cd benchmarks && cargo test --benches --locked
-
   # Please keep this in sync with `publish-docs.yml`
   documentation:
     name: Documentation
@@ -117,7 +98,6 @@ jobs:
     - name: Check formatting
       run: |
         cargo fmt -- --check
-        (cd benchmarks && cargo fmt -- --check)
         (cd docs && cargo fmt -- --check)
         # trybuild harnesses are technically not part of the Cargo project, so
         # need to be checked separately

Cargo.toml

@@ -5,6 +5,5 @@ members = [
     "maud",
 ]
 exclude = [
-    "benchmarks",
     "docs",
 ]