remove preloader

Hi, the preloader animation javascript is conflicting with a plugin. Could you tell me how to remove it via child theme functions.php please?
It’s deactivating hyperlinks on Responsive Pricing Table buttons.

This is the code that’s doing it.

<script>
jQuery(function($){
$(window).on('load', function(){
setTimeout(function(){
$('#preloader').fadeOut(1000); }, 10000)
$('#preloader').fadeOut(1000);
$('#mainframe').animate({opacity:1});
});
$(window).on('unload', function(){
$('#preloader').fadeIn(100);
});
$('body').on('click','a', function(e){
e.preventDefault();
if($(this).attr('target')==undefined &&
this.href.indexOf('#')==-1) {
$('#preloader').fadeIn(100);
location.href = this.href;
}
});

$('#preloader').on('click', function(){
alert(1);
$('#preloader').fadeOut(1000);
});

setTimeout(function(){ $('#preloader').fadeOut(1000);
}, 15000)
});
</script>

Thanks