Revert "Merge branch 'patch-11' into 'dev'"

This reverts commit e518445853, reversing
changes made to 8ce240b95c.

include/language.php

@@ -254,34 +254,6 @@ function tt($singular, $plural, $count, $ctx = ''){
 	}
 }
 
-/**
- * @brief Return slash separated string of plurals translation forms
- *
- * @param string $k key in translations array
- * @return string
- */
-function ta($k){
-
-        $t = App::$strings[$k];
-        if (is_array($t))
-                $t = implode("/", $t);
-        return ($t == "" ? $k : $t);
-}
-
-/**
- * @brief Return string_plural_select_xx function code
- *
- * @return string
- */
-function tf() {
-
-        $r = "";
-        $lang = str_replace('-', '_', App::$language);
-        if(function_exists("string_plural_select_".$lang))
-                $r = trim(shell_exec("sed -n '5p' view/".$lang."/hstrings.php | grep 'return' | tr -d '$'"));
-        return ($r != "" ? $r : "return 0;");
-}
-
 /**
  * @brief Provide a fallback which will not collide with a function defined in
  * any language file.