How can I remove this icon?

[luishiguera]

Hello, this icon will appear when hovering over the input

[folknor]

That's not added by autoComplete.js.

https://www.google.com/search?q=css+remove+x+icon+in+input

/* clears the ‘X’ from Internet Explorer */
input[type=search]::-ms-clear { display: none; width : 0; height: 0; }
input[type=search]::-ms-reveal { display: none; width : 0; height: 0; }

/* clears the ‘X’ from Chrome */
input[type="search"]::-webkit-search-decoration,
input[type="search"]::-webkit-search-cancel-button,
input[type="search"]::-webkit-search-results-button,
input[type="search"]::-webkit-search-results-decoration { display: none; }

[TarekRaafat]

Or you could change the input field type from type="search" which adds the cancel/clear icon to type="text" which does not.