block: Fix PHPDoc comments to match function signature (or method)

- Add @param annotation for $row to newFromRow() method in Restriction
  interface declaration.
- Remove @param annotation for $option not used in loadByBlockId() method
  signature.

Change-Id: Iec49b9541ea06da9f497e45bd35df26f8124aecf

includes/block/BlockRestriction.php

@@ -34,7 +34,6 @@ class BlockRestriction {
 	 *
 	 * @param int|array $blockId
 	 * @param IDatabase|null $db
-	 * @param array $options Options to pass to the select query.
 	 * @return Restriction[]
 	 */
 	public static function loadByBlockId( $blockId, IDatabase $db = null ) {

includes/block/Restriction/Restriction.php

@@ -63,6 +63,7 @@ interface Restriction {
 	/**
 	 * Creates a new Restriction from a database row.
 	 *
+	 * @param \stdClass $row
 	 * @return self
 	 */
 	public static function newFromRow( \stdClass $row );