Keeping your shit at home is fine. Spreading it everywhere is not.

sf_remove_fuckin_maps_maker_ad.php

// !WordPress Plugin "Leaflet Maps Marker"

if ( class_exists( 'Leafletmapsmarker' ) ) :

	// !Remove the fuckin' ad from the plugins list (I'm not paid to do that, it just makes me happy). Next time, follow WP guidelines. Kisses =)

	add_action( 'admin_print_styles-plugins.php', 'sf_remove_fuckin_maps_maker_ad_from_plugins_list' );

	function sf_remove_fuckin_maps_maker_ad_from_plugins_list() {
		global $wp_filter;

		if ( ! empty( $wp_filter['plugin_row_meta'][10] ) ) {
			foreach ( $wp_filter['plugin_row_meta'][10] as $uniq_id => $atts ) {
				if ( is_array( $atts['function'] ) && is_a( $atts['function'][0], 'Leafletmapsmarker' ) && $atts['function'][1] === 'lmm_plugins_page_add_links' ) {
					remove_action( 'plugin_row_meta', $uniq_id, 10 );	// Head shot.
					wp_deregister_style( 'leafletmapsmarker-plugin-styling' );
					return;
				}
			}
		}
	}


	// !Remove another fuckin' ad from the admin menu. YAY!

	add_action( 'admin_menu', 'sf_remove_fuckin_maps_maker_ad_from_menu' );

	function sf_remove_fuckin_maps_maker_ad_from_menu() {
		remove_submenu_page( 'leafletmapsmarker_markers', 'leafletmapsmarker_pro_upgrade' );
	}

endif;

// You're welcome :)