CI: don't do things setup.sh does for us
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a4f02ed..04f21b5 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -43,9 +43,6 @@
 #          source environment &&
 #          make optee &&
 #          . ~/.cargo/env &&
-#          rustup component add rust-src &&
-#          rustup target install aarch64-unknown-linux-gnu arm-unknown-linux-gnueabihf &&
-#          rustup default nightly-2021-09-20 &&
 #          make examples
 #      - name: Run tests and examples
 #        run: |
@@ -70,9 +67,6 @@
           source environment &&
           make optee &&
           . ~/.cargo/env &&
-          rustup component add rust-src &&
-          rustup target install aarch64-unknown-linux-gnu arm-unknown-linux-gnueabihf &&
-          rustup default nightly-2021-09-20 &&
           (cd optee-utee && xargo build --target aarch64-unknown-optee-trustzone -vv) &&
           (cd optee-teec && cargo build --target aarch64-unknown-linux-gnu -vv)
   build-and-run-examples-in-OPTEE-repo: