Using Chrome Version 74.0.3729.157 ("re-launched" today, 5/13/2019). I wish to clear autofill FORM data. When I go to Settings, Advanced, Clear browsing history; Autofill form data IS checked but, clicking "Clear Data" doesn't do the job. Oddly, supposedly there are NONE to clear. However, there are indeed NUMEROUS autofill "suggestions" every time I click in any form field. Been searching online for help/answers to no avail. Every suggestion, except what I've tried per above, leads nowhere. Most suggestions are outdated. It is difficult to sort through & find anything current/pertinent. Areas supposedly present just aren't such as; "Manage autofill settings" ("old").
At least, would be nice to know it is no longer possible: though cannot believe it.