Revert "tests: Mark gdbus-peer test as flaky". See #1686
Revert "tests: Mark gdbus-peer test as flaky". See #1686

This reverts commit 983a40bf34063c90a2d916de82a5580d2c8f9ed5.

endlessm/glib,endlessm/glib,endlessm/glib,endlessm/glib,endlessm/glib