Delete all non-custom search engines from chrome

clean-search-engines.js

// DANGER: this will delete all search engines that don't have a `.` in their keyword

// Go to chrome://settings/searchEngines and put this in the console
settings.SearchEnginesBrowserProxyImpl.prototype.getSearchEnginesList()
  .then(function(val) {
    val.others.sort(function(a, b) { return b.modelIndex - a.modelIndex; });
    val.others.forEach(function(engine) {
      if (engine.keyword.includes(".")) { 
        settings.SearchEnginesBrowserProxyImpl.prototype.removeSearchEngine(engine.modelIndex); 
      }
    });
  });