chore(tests): remove unused phantomJS workaround

[codymikol]

this is no longer needed as phantomJS is not used

Fixes: N/A

PR Checklist

Please check that your PR fulfills the following requirements:

• The commit message follows our guidelines
• Tests for the changes have been added or this is not a bug fix / enhancement
• Docs have been added, updated, or were not required

PR Type

What kind of change does this PR introduce?

[ ] Bugfix
[ ] Enhancement
[ ] Documentation content changes
[ ] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no api changes)
[ ] Build related changes
[ ] CI related changes
[ ] Infrastructure changes
[x] Other... Please describe:

What is the current behavior?

There is a bit of functionality that was at one point useful for working around phantomJS not implementing click() on HTML elements, this is no longer required as phantomJS is not used.

Issue Number: N/A

What is the new behavior?

This workaround has been removed.

Does this PR introduce a breaking change?

[ ] Yes
[x] No

Other information

This was a change that was made while investigating #11489 but was unrelated and a PR could be made separately.

[Splaktar]

Thank you for looking at this.

Please update the commit message to use present (not past tense) as mentioned in our commit message guidelines. I.e. removed -> remove.

Please change the Fixes N/A line to Relates to #11489.

[codymikol]

I updated the commit message @Splaktar 🐔 sorry for the delay on all this!

[Splaktar]

LGTM