Remove Default jQuery

// Remove default WordPress jquery

wp_deregister_script( 'jquery' );

//Remove jquery migrate

add_action( 'wp_default_scripts', 'remove_jquery_migrate' );

function remove_jquery_migrate( $scripts ) {

	if ( ! is_admin() && isset( $scripts->registered['jquery'] ) ) {

		$script = $scripts->registered['jquery'];

		if ( $script->deps ) { 

			$script->deps = array_diff( $script->deps, array( 'jquery-migrate' ) );

		}

	}

}