Update build.yml

Author: afox666

.github/workflows/build.yml

@@ -31,14 +31,6 @@ jobs:
     container:
       image: duskmoon/dev-env:rcore-ci
     steps:
-      - name: Remove Cargo proxy config
-        run: |
-          unset RUSTUP_DIST_SERVER
-          unset RUSTUP_UPDATE_ROOT
-          unset CARGO_HTTP_MULTIPLEXING
-          # 删除或重置全局配置
-          rm ${CARGO_HOME}/config.toml || true
-          rm -rf rm ${CARGO_HOME}/registry/* || true
       - uses: actions/checkout@v4
       - name: Run tests
         run: |