ci: remove workarounds

Author: mkroening

.github/workflows/ci.yml

@@ -13,13 +13,6 @@ jobs:
   dist:
     name: Build rust-std-hermit distribution artifacts
     runs-on: ubuntu-latest
-    env:
-      # FIXME: this is a workaround for
-      # thread 'main' panicked at src/build_helper/src/git.rs:145:54:
-      # called `Result::unwrap()` on an `Err` value: "Cannot find any suitable upstream master branch"
-      # https://github.com/rust-lang/rust/blob/1.86.0/src/build_helper/src/git.rs#L145
-      CI_JOB_NAME: dist-hermit
-      TOOLSTATE_REPO: "https://github.com/rust-lang-nursery/rust-toolstate"
     steps:
       - uses: actions/checkout@v6
       - name: Checkout rust
@@ -29,7 +22,6 @@ jobs:
           ref: ${{ env.RUSTUP_TOOLCHAIN }}
           path: rust
           fetch-depth: 5
-          submodules: true
       - name: Install arch-specific GCC variants
         run: |
           sudo apt-get update