Using this simple tip you can hide instructors from the whole site :

1. Go to WP Admin -> Plugins -> Editor -> WPLMS Customizer ->customizer_class.php

2. Add the following line in _construct function :

PHP Code:

 

add_filter('wplms_display_course_instructor',array ($this,'remove_instructor'));

 

3. Add the following code in class :

PHP Code:

 

function remove_instructor($instructor_html){
return '';
}

 

4. Add following CSS in Theme Customizer -> Custom CSS block to remove the instructor label from courses :

Code:

 

#item-admins{display:none;}
#searchform>ul li:nth-child(2){
	display: none;
}