gistfile1.php

<?php

add_filter( 'resume_manager_resume_education_fields', 'my_custom_remove_education_field_admin' );
add_filter( 'submit_resume_form_fields', 'my_custom_remove_education_field_frontend' );

function my_custom_remove_education_field_admin( $fields ){
	
	unset( $fields['qualification'] );
	
	return $fields;
	
}

function my_custom_remove_education_field_frontend( $fields ){
	
	unset( $fields['resume_fields']['candidate_education']['fields']['qualification'] );
	
	return $fields;
	
}