fixup! Add signing keychain to workflow

Author: rgaudin

.github/workflows/wheels.yml

@@ -65,9 +65,6 @@ jobs:
             --keychain ${APPLE_SIGNING_KEYCHAIN_PATH} \
             ${APPLE_SIGNING_KEYCHAIN_PROFILE}
 
-          # unlock the keychain so build-step doesn't need to know its password
-          security unlock-keychain -p mysecretpassword ${APPLE_SIGNING_KEYCHAIN_PATH}
-
       - name: Build wheels
         uses: pypa/cibuildwheel@v2.12.1