Remove deprecated imagedestroy calls for PHP 8+

Author: Pixelao

src/Renderers/JpgRenderer.php

@@ -25,9 +25,5 @@ protected function createImagickImageObject(int $width, int $height): Imagick
     protected function generateGdImage($image): void
     {
         \imagejpeg($image);
-
-        if (version_compare(PHP_VERSION, '8.0.0', '<')) {
-            \imagedestroy($image);
-        }
     }
 }

src/Renderers/PngRenderer.php

@@ -148,9 +148,5 @@ protected function createImagickImageObject(int $width, int $height): Imagick
     protected function generateGdImage($image): void
     {
         \imagepng($image);
-
-        if (version_compare(PHP_VERSION, '8.0.0', '<')) {
-            \imagedestroy($image);
-        }
     }
 }