Backed out 2 changesets (bug 1569847) for browser-chrome failures at browser/components/aboutlogins/tests/browser/browser_breachAlertDismissals.js

Backed out changeset 3d3776e4a61a (bug 1569847)
Backed out changeset 1b5f7672e2d2 (bug 1569847)

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rename : browser/components/aboutlogins/tests/unit/test_getPotentialBreachesByLoginGUID.js => browser/components/aboutlogins/tests/unit/test_getBreachesForLogins.js