Hi,

Please add the following code to Appearance > Customize > Additional CSS.

/* 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; }

Feel free to ask for anything you need.

Kind Regards

You are welcome anytime, feel free to ask for anything you need.

Kind Regards,
NeuronThemes