Revert "Also test install from checkout"

This reverts commit 410f9f5.

.github/workflows/tests.yml

@@ -69,29 +69,6 @@ jobs:
       - name: Test
         run: cargo test --workspace
 
-  install-from-checkout:
-    strategy:
-      matrix:
-        os: [macOS-latest, ubuntu-latest, windows-latest]
-        version: [stable, nightly, "1.74"]
-        locked: ["locked", "unlocked"]
-    runs-on: ${{ matrix.os }}
-    needs: [test]
-    steps:
-      - uses: actions/checkout@v4
-      - uses: dtolnay/rust-toolchain@master
-        with:
-          toolchain: ${{ matrix.version }}
-      - name: Show Cargo and rustc version
-        run: |
-          cargo --version
-          rustc --version
-      - uses: Swatinem/rust-cache@v2
-      - run: cargo install --locked ${{ matrix.locked }} --path .
-        if: ${{ matrix.locked == "locked" }}
-      - run: cargo install --path .
-        if: ${{ matrix.locked != "locked" }}
-
   release-binary:
     runs-on: ubuntu-latest
     steps: