Remove redundant legacy code

src/mibew/libs/common/response.php

@@ -17,19 +17,6 @@
  * limitations under the License.
  */
 
-function get_popup($href, $js_href, $message, $title, $wnd_name, $options)
-{
-    if (!$js_href) {
-        $js_href = "'$href'";
-    }
-    return "<a href=\"$href\" target=\"_blank\" "
-        . ($title ? "title=\"$title\" " : "")
-        . "onclick=\"if(navigator.userAgent.toLowerCase().indexOf('opera') != -1 "
-        . "&amp;&amp; window.event.preventDefault) window.event.preventDefault();"
-        . "this.newWindow = window.open($js_href, '$wnd_name', '$options');"
-        . "this.newWindow.focus();this.newWindow.opener=window;return false;\">$message</a>";
-}
-
 function no_field($key)
 {
     return getlocal('Please fill "{0}".', array(getlocal($key)));
@@ -44,17 +31,3 @@ function wrong_field($key)
 {
     return getlocal('Please fill "{0}" correctly.', array(getlocal($key)));
 }
-
-function add_params($servlet, $params)
-{
-    $infix = '?';
-    if (strstr($servlet, $infix) !== false) {
-        $infix = '&amp;';
-    }
-    foreach ($params as $k => $v) {
-        $servlet .= $infix . $k . "=" . $v;
-        $infix = '&amp;';
-    }
-
-    return $servlet;
-}

src/mibew/libs/common/string.php

@@ -17,29 +17,6 @@
  * limitations under the License.
  */
 
-function unicode_urldecode($url)
-{
-    preg_match_all('/%u([[:alnum:]]{4})/', $url, $a);
-
-    foreach ($a[1] as $uniord) {
-        $dec = hexdec($uniord);
-        $utf = '';
-
-        if ($dec < 128) {
-            $utf = chr($dec);
-        } elseif ($dec < 2048) {
-            $utf = chr(192 + (($dec - ($dec % 64)) / 64));
-            $utf .= chr(128 + ($dec % 64));
-        } else {
-            $utf = chr(224 + (($dec - ($dec % 4096)) / 4096));
-            $utf .= chr(128 + ((($dec % 4096) - ($dec % 64)) / 64));
-            $utf .= chr(128 + ($dec % 64));
-        }
-        $url = str_replace('%u' . $uniord, $utf, $url);
-    }
-    return urldecode($url);
-}
-
 function cut_string($string, $length = 75, $ellipsis = '')
 {
     $result = '';