Remove the Article schema from Posts

add_filter( 'aioseo_schema_output', 'aioseo_filter_schema_output' );

function aioseo_filter_schema_output( $graphs ) {

	if ( is_singular( 'post' ) ) {

 	   foreach ( $graphs as $index => $graph ) {

			if ( 'Article' === $graph['@type'] ) {

				unset( $graphs[ $index ] );

			}

		}

	}

	return $graphs;

}