Drop unnecessary 3'rd argument of `erlydtl_runtime:translate/3`

src/erlydtl_compiler.erl

@@ -1278,7 +1278,7 @@ runtime_trans_ast(ValueAst, AstInfo, TreeWalker) ->
     StringLookupAst = erl_syntax:application(
                         erl_syntax:atom(erlydtl_runtime),
                         erl_syntax:atom(translate),
-                        [ValueAst, erl_syntax:variable("_TranslationFun"), ValueAst]), %TODO: remove 3'rd arg
+                        [ValueAst, erl_syntax:variable("_TranslationFun")]),
     {{StringLookupAst, AstInfo}, TreeWalker}.
 
 compiletime_trans_ast(String, AstInfo,

src/erlydtl_runtime.erl

@@ -110,15 +110,15 @@ regroup([Item|Rest], Attribute, [[{grouper, PrevGrouper}, {list, PrevList}]|Acc]
             regroup(Rest, Attribute, [[{grouper, Value}, {list, [Item]}], [{grouper, PrevGrouper}, {list, lists:reverse(PrevList)}]|Acc])
     end.
 
--spec translate(Str, none | translate_fun(), Str) -> Str when
+-spec translate(Str, none | translate_fun()) -> Str when
       Str :: string() | binary().
-translate(_, none, Default) ->
-    Default;
-translate(String, TranslationFun, Default) when is_function(TranslationFun) ->
+translate(String, none) -> String;
+translate(String, TranslationFun)
+  when is_function(TranslationFun) ->
     case TranslationFun(String) of
-        undefined -> Default;
-        <<"">> -> Default;
-        "" -> Default;
+        undefined -> String;
+        <<"">> -> String;
+        "" -> String;
         Str -> Str
     end.