Adjust files_encryption requirements to the new core requirement (PHP 5.3.8).

apps/files_encryption/lib/helper.php

@@ -370,14 +370,7 @@ class Helper {
 	 * @return bool true if requirements are met
 	 */
 	public static function checkRequirements() {
-		$result = true;
-
-		//openssl extension needs to be loaded
-		$result &= extension_loaded("openssl");
-		// we need php >= 5.3.3
-		$result &= version_compare(phpversion(), '5.3.3', '>=');
-
-		return (bool) $result;
+		return extension_loaded('openssl');
 	}
 
 	/**