ci: remove export

Author: 0xPoe

.github/workflows/main.yml

@@ -13,8 +13,7 @@ jobs:
       - name: Setup Environment
         run: cd os && make env
       - name: Check user
-        run: |
-        cd usr/rust/ && cargo fmt -- --check && cargo clippy -- -D warnings
+        run: cd usr/rust/ && cargo fmt -- --check && cargo clippy -- -D warnings
       - name: Check os
         run: cd os && cargo fmt -- --check && cargo clippy -- -D warnings
   build: