Fixed PHP autosuggest placeholder is not being used.

[fabianmarz]

Description of the Change

• While the autosuggest search string placeholder value can be changed via a PHP hook, it's not picked up by the autosuggest JS and therefore the query will break or doesn't deliver the correct results.

Alternate Designs

• Instead of deleting const placeholder = 'ep_autosuggest_placeholder'; I considered using const placeholder = queryJSON.placeholder; but decided to drop the line completely as the placeholder is used in buildSearchQuery() only.

Benefits

• Don't break any the results if other than the default value is used :)

Possible Drawbacks

• X

Verification Process

• Inspected the query after the search and replace was done to ensure the query runs with the actual search term.

Checklist:

• I have read the CONTRIBUTING document.
• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added tests to cover my change.
• All new and existing tests passed.

Applicable Issues

• Didn't find any.

Changelog Entry

[tlovett1]

@mustafauysal can you review this one?

[mustafauysal]

@tlovett1 looks good to me 👍