urls-check: drop superfluous dont_write_bytecode = True
urls-check: drop superfluous dont_write_bytecode = True

This has no impact because it's done after all the imports.  It's also
unprecedented: nothing else in the project does this, outside of the
run-tests scripts (which are in a bit of a different category, because
they import the testcases themselves).

cockpit-project/cockpit,cockpit-project/cockpit,garrett/cockpit,mvollmer/cockpit,martinpitt/cockpit,martinpitt/cockpit,garrett/cockpit,mvollmer/cockpit,martinpitt/cockpit,mvollmer/cockpit,martinpitt/cockpit,martinpitt/cockpit,mvollmer/cockpit,cockpit-project/cockpit,garrett/cockpit,garrett/cockpit,garrett/cockpit,cockpit-project/cockpit,mvollmer/cockpit,cockpit-project/cockpit