diff --git a/library/smarty/libs/sysplugins/smarty_internal_compile_assign.php b/library/smarty/libs/sysplugins/smarty_internal_compile_assign.php
deleted file mode 100644
--- a/library/smarty/libs/sysplugins/smarty_internal_compile_assign.php
+++ /dev/null
@@ -1,84 +0,0 @@
-<?php
-/**
- * Smarty Internal Plugin Compile Assign
- * Compiles the {assign} tag
- *
- * @package    Smarty
- * @subpackage Compiler
- * @author     Uwe Tews
- */
-
-/**
- * Smarty Internal Plugin Compile Assign Class
- *
- * @package    Smarty
- * @subpackage Compiler
- */
-class Smarty_Internal_Compile_Assign extends Smarty_Internal_CompileBase {
-    /**
-     * Compiles code for the {assign} tag
-     *
-     * @param  array $args array with attributes from parser
-     * @param  object $compiler compiler object
-     * @param  array $parameter array with compilation parameter
-     *
-     * @return string compiled code
-     */
-    public function compile($args, $compiler, $parameter) {
-        // the following must be assigned at runtime because it will be overwritten in Smarty_Internal_Compile_Append
-        $this->required_attributes = array('var', 'value');
-        $this->shorttag_order = array('var', 'value');
-        $this->optional_attributes = array('scope');
-        $_nocache = 'null';
-        $_scope = Smarty::SCOPE_LOCAL;
-        // check and get attributes
-        $_attr = $this->getAttributes($compiler, $args);
-        // nocache ?
-        if ($compiler->tag_nocache || $compiler->nocache) {
-            $_nocache = 'true';
-            // create nocache var to make it know for further compiling
-            if (isset($compiler->template->tpl_vars[trim($_attr['var'], "'")])) {
-                $compiler->template->tpl_vars[trim($_attr['var'], "'")]->nocache = true;
-            } else {
-                $compiler->template->tpl_vars[trim($_attr['var'], "'")] = new Smarty_Variable(null, true);
-            }
-        }
-        // scope setup
-        if (isset($_attr['scope'])) {
-            $_attr['scope'] = trim($_attr['scope'], "'\"");
-            if ($_attr['scope'] == 'parent') {
-                $_scope = Smarty::SCOPE_PARENT;
-            } elseif ($_attr['scope'] == 'root') {
-                $_scope = Smarty::SCOPE_ROOT;
-            } elseif ($_attr['scope'] == 'global') {
-                $_scope = Smarty::SCOPE_GLOBAL;
-            } else {
-                $compiler->trigger_template_error('illegal value for "scope" attribute', $compiler->lex->taglineno);
-            }
-        }
-        // compiled output
-        if (isset($parameter['smarty_internal_index'])) {
-            $output = "<?php \$_smarty_tpl->createLocalArrayVariable($_attr[var], $_nocache, $_scope);\n\$_smarty_tpl->tpl_vars[$_attr[var]]->value$parameter[smarty_internal_index] = $_attr[value];";
-        } else {
-            // implement Smarty2's behaviour of variables assigned by reference
-            if ($compiler->template->smarty instanceof SmartyBC) {
-                $output = "<?php if (isset(\$_smarty_tpl->tpl_vars[$_attr[var]])) {\$_smarty_tpl->tpl_vars[$_attr[var]] = clone \$_smarty_tpl->tpl_vars[$_attr[var]];";
-                $output .= "\n\$_smarty_tpl->tpl_vars[$_attr[var]]->value = $_attr[value]; \$_smarty_tpl->tpl_vars[$_attr[var]]->nocache = $_nocache; \$_smarty_tpl->tpl_vars[$_attr[var]]->scope = $_scope;";
-                $output .= "\n} else \$_smarty_tpl->tpl_vars[$_attr[var]] = new Smarty_Variable($_attr[value], $_nocache, $_scope);";
-            } else {
-                $output = "<?php \$_smarty_tpl->tpl_vars[$_attr[var]] = new Smarty_Variable($_attr[value], $_nocache, $_scope);";
-            }
-        }
-        if ($_scope == Smarty::SCOPE_PARENT) {
-            $output .= "\nif (\$_smarty_tpl->parent != null) \$_smarty_tpl->parent->tpl_vars[$_attr[var]] = clone \$_smarty_tpl->tpl_vars[$_attr[var]];";
-        } elseif ($_scope == Smarty::SCOPE_ROOT || $_scope == Smarty::SCOPE_GLOBAL) {
-            $output .= "\n\$_ptr = \$_smarty_tpl->parent; while (\$_ptr != null) {\$_ptr->tpl_vars[$_attr[var]] = clone \$_smarty_tpl->tpl_vars[$_attr[var]]; \$_ptr = \$_ptr->parent; }";
-        }
-        if ($_scope == Smarty::SCOPE_GLOBAL) {
-            $output .= "\nSmarty::\$global_tpl_vars[$_attr[var]] = clone \$_smarty_tpl->tpl_vars[$_attr[var]];";
-        }
-        $output .= '?>';
-
-        return $output;
-    }
-}