Bug 1689141 - [devtools] Enable browser_source_map-reload test r=nchevobbe

Differential Revision: https://phabricator.services.mozilla.com/D116995

devtools/client/framework/test/browser.ini

@@ -79,7 +79,6 @@ prefs =
 [browser_source_map-no-race.js]
 [browser_source_map-pub-sub.js]
 [browser_source_map-reload.js]
-skip-if = fission # Disable frequent fission intermittents Bug 1675020
 [browser_source_map-late-script.js]
 [browser_tab_descriptor_factory.js]
 [browser_tab_descriptor_fission.js]