Removed comments that only shows steps

This steps was only helpful while implementing the algorithm. And could be useful while comparing with the W3C specification, but they take up too much space.

src/MicrodataParser.php

@@ -16,50 +16,36 @@ class MicrodataParser
 
     public function extractMicrodata()
     {
-        // Step 1
         $result = new \stdClass;
 
-        // Step 2
         $items = [];
 
-        // Step 3
         foreach ($this->topLevelItems as $topLevelItem) {
             $items[] = $this->getObject($topLevelItem);
         }
 
-        // Step 4
         $result->items = $items;
 
-        // Step 5
         return $result;
     }
 
     protected function getObject(\DOMElement $item, $memory = [])
     {
-        // Step 1
         $result = new \stdClass;
 
-        // Step 2 in 2nd parameter of this function
-        // $memory = [];
-
-        // Step 3
         $memory[] = $item;
 
-        // Step 4
         $itemtype = $item->getAttribute('itemtype');
         $result->type = $itemtype ? preg_split('/\s+/', $itemtype) : [];
         // @todo Check if types are valid absolute urls
 
-        // Step 5
         if ($itemId = $item->getAttribute('itemid')) {
             $result->id = $itemId;
         }
         // @todo Check if item ids are valid absolute urls or like isbn:xxx
 
-        // Step 6
         $properties = new \stdClass;
 
-        // Step 7
         foreach ($item->getProperties() as $element) {
             $value = $element->getPropertyValue();
 
@@ -80,10 +66,8 @@ class MicrodataParser
             }
         }
 
-        // Step 8
         $result->properties = $properties;
 
-        // Step 9
         return $result;
     }