Revert "Merge pull request #17673 from marshall/ftuPing"

This reverts commit c3c12544f7acbf0e66d7d481c0718634e068d3ce, reversing
changes made to d84935863b56ea76d7d33486f44a64467a70885f.
Merge branch 'master' of https://github.com/mozilla-b2g/gaia
Merge branch 'master' of https://github.com/mozilla-b2g/gaia
Merge branch 'master' of https://github.com/mozilla-b2g/gaia
Merge branch 'master' of https://github.com/mozilla-b2g/gaia
Merge branch 'master' of https://github.com/mozilla-b2g/gaia