fix(ci): remove hashFiles from guest-lib-tests (openvm-org#1710)

Author: jonathanpwang

.github/workflows/guest-lib-tests.yml

@@ -67,7 +67,6 @@ jobs:
       - uses: taiki-e/install-action@nextest
 
       - name: Run ${{ matrix.crate.name }} guest library tests
-        if: hashFiles(format('guest-libs/{0}/', matrix.crate.path)) != ''
         working-directory: guest-libs/${{ matrix.crate.path }}
         run: |
           rustup component add rust-src --toolchain nightly-2025-02-14