After you are done with the above steps of removing edit post capability of instructor then you can add this code in wplms-customize.php to hide marked tabs
Goto plugin editor>> wplms-customizer>>wplms-customizer.php
add_action('wp_head', 'hide_instructor_menu_tabs');
function hide_instructor_menu_tabs() {
$user = wp_get_current_user();
if ( !current_user_can('manage_options')) {
?>
<style>
#vibebp_member #course_component .course_manage .instructor_tabs span:first-child{
display:none !important;
}
#vibebp_member #course_component .course_manage .instructor_tabs span:nth-child(5){
display:none !important;
}
#vibebp_member #course_component .course_manage .instructor_tabs span:nth-child(7){
display:none !important;
}
#vibebp_member #course_component .mycourses .course_manage .instructor_tabs span:first-child{
display:block !important;
}
#vibebp_member #course_component .mycourses .course_manage .instructor_tabs span:nth-child(5){
display:block !important;
}
</style>
<?php
}
}