test: update e2e tests

tests/e2e/custom-assertions/elementCount.js

@@ -1,19 +0,0 @@
-// A custom Nightwatch assertion.
-// The assertion name is the filename.
-// Example usage:
-//
-//   browser.assert.elementCount(selector, count)
-//
-// For more information on custom assertions see:
-// http://nightwatchjs.org/guide#writing-custom-assertions
-
-exports.assertion = function elementCount (selector, count) {
-  this.message = `Testing if element <${selector}> has count: ${count}`
-  this.expected = count
-  this.pass = val => val === count
-  this.value = res => res.value
-  function evaluator (_selector) {
-    return document.querySelectorAll(_selector).length
-  }
-  this.command = cb => this.api.execute(evaluator, [selector], cb)
-}