functions.php

<?php

/**
 * Delete share count data 
 *
 */
function be_delete_share_count_data() {
	$loop = new WP_Query( array( 
		'posts_per_page' => 100, 
		'meta_key' => 'ea_share_count',
		'fields' => 'ids',
	) );
	
	if( $loop->have_posts() ):
		foreach( $loop->posts as $post_id ) {
			delete_post_meta( $post_id, 'ea_share_count' );
			delete_post_meta( $post_id, 'ea_share_count_datetime' );
			delete_post_meta( $post_id, 'ea_share_count_total' );
		}
	endif;
}
add_action( 'wp_footer', 'be_delete_share_count_data' );