Remove suppress output to see why wheel is not building

Author: mfitton

ci/travis/ci.sh

@@ -296,7 +296,7 @@ build_wheels() {
       ;;
     darwin*)
       # This command should be kept in sync with ray/python/README-building-wheels.md.
-      suppress_output "${WORKSPACE_DIR}"/python/build-wheel-macos.sh
+      "${WORKSPACE_DIR}"/python/build-wheel-macos.sh
       ;;
     msys*)
       keep_alive "${WORKSPACE_DIR}"/python/build-wheel-windows.sh