Inline getImagesizeFromString() as it's only used once, and is quite specific to loadFromString()

Author: Mitch

src/ImageResize.php

@@ -77,16 +77,6 @@ public function __construct($filename = null)
         }
     }
 
-    /**
-     * Get image size from string
-     *
-     * @param string $imagedata
-     * @return array
-     */
-    protected function getImagesizeFromString($imagedata){
-        return @getimagesize('data://application/octet-stream;base64,' . base64_encode($imagedata));
-    }
-
     /**
      * Load image from string
      *
@@ -96,7 +86,8 @@ protected function getImagesizeFromString($imagedata){
      */
     public function loadFromString($imagedata)
     {
-        $image_info = $this->getImagesizeFromString($imagedata);
+        $image_info = getimagesize('data://application/octet-stream;base64,' . base64_encode($imagedata));
+
         if(!$image_info) {
             throw new \Exception('Could not load image from string');
         }