rm: remove rust-check.yml

Other workflows already run the same checks, so it's unnecessary

.github/workflows/rust-check.yml

@@ -1,20 +0,0 @@
-name: Rust Check
-
-on:
-  push:
-    branches: [ "rewrite" ]
-  pull_request:
-    branches: [ "rewrite" ]
-
-env:
-  CARGO_TERM_COLOR: always
-
-jobs:
-  format:
-    runs-on: ubuntu-latest
-
-    steps:
-      - uses: actions/checkout@v3
-      - uses: mirlahiji/rust-action@master
-        with:
-          args: cargo fmt -- --check && cargo clippy -- -Dwarnings && cargo test