Remove deprecated usage of get_magic_quotes_runtime()

This function has been DEPRECATED as of PHP 7.4.0, and REMOVED as of PHP 8.0.0.

From PHP v7.4 this function always returns false

Author: thePanz

lib/classes/Swift/ByteStream/FileByteStream.php

@@ -49,10 +49,6 @@ public function __construct($path, $writable = false)
         }
         $this->_path = $path;
         $this->_mode = $writable ? 'w+b' : 'rb';
-
-        if (function_exists('get_magic_quotes_runtime') && @get_magic_quotes_runtime() == 1) {
-            $this->_quotes = true;
-        }
     }
 
     /**

lib/classes/Swift/KeyCache/DiskKeyCache.php

@@ -45,13 +45,6 @@ class Swift_KeyCache_DiskKeyCache implements Swift_KeyCache
      */
     private $_keys = array();
 
-    /**
-     * Will be true if magic_quotes_runtime is turned on.
-     *
-     * @var bool
-     */
-    private $_quotes = false;
-
     /**
      * Create a new DiskKeyCache with the given $stream for cloning to make
      * InputByteStreams, and the given $path to save to.
@@ -63,10 +56,6 @@ public function __construct(Swift_KeyCache_KeyCacheInputStream $stream, $path)
     {
         $this->_stream = $stream;
         $this->_path = $path;
-
-        if (function_exists('get_magic_quotes_runtime') && @get_magic_quotes_runtime() == 1) {
-            $this->_quotes = true;
-        }
     }
 
     /**
@@ -176,16 +165,10 @@ public function getString($nsKey, $itemKey)
         $this->_prepareCache($nsKey);
         if ($this->hasKey($nsKey, $itemKey)) {
             $fp = $this->_getHandle($nsKey, $itemKey, self::POSITION_START);
-            if ($this->_quotes) {
-                ini_set('magic_quotes_runtime', 0);
-            }
             $str = '';
             while (!feof($fp) && false !== $bytes = fread($fp, 8192)) {
                 $str .= $bytes;
             }
-            if ($this->_quotes) {
-                ini_set('magic_quotes_runtime', 1);
-            }
             $this->_freeHandle($nsKey, $itemKey);
 
             return $str;
@@ -203,15 +186,9 @@ public function exportToByteStream($nsKey, $itemKey, Swift_InputByteStream $is)
     {
         if ($this->hasKey($nsKey, $itemKey)) {
             $fp = $this->_getHandle($nsKey, $itemKey, self::POSITION_START);
-            if ($this->_quotes) {
-                ini_set('magic_quotes_runtime', 0);
-            }
             while (!feof($fp) && false !== $bytes = fread($fp, 8192)) {
                 $is->write($bytes);
             }
-            if ($this->_quotes) {
-                ini_set('magic_quotes_runtime', 1);
-            }
             $this->_freeHandle($nsKey, $itemKey);
         }
     }