Remove unused function rebar_utils:deprecated/4

src/rebar_utils.erl

@@ -41,7 +41,7 @@
          find_executable/1,
          prop_check/3,
          expand_code_path/0,
-         deprecated/4, deprecated/5]).
+         deprecated/5]).
 
 -include("rebar.hrl").
 
@@ -264,16 +264,12 @@ emulate_escript_foldl(Fun, Acc, File) ->
 deprecated(Key, Old, New, Opts, When) ->
     case lists:member(Old, Opts) of
         true ->
-            deprecated(Key, Old, New, When);
+            io:format(
+              <<"WARNING: deprecated ~p option used~n"
+                "Option '~p' has been deprecated~n"
+                "in favor of '~p'.~n"
+                "'~p' will be removed ~s.~n~n">>,
+              [Key, Old, New, Old, When]);
         false ->
             ok
     end.
-
-deprecated(Key, Old, New, When) ->
-    io:format(
-      <<
-        "WARNING: deprecated ~p option used~n"
-        "Option '~p' has been deprecated~n"
-        "in favor of '~p'.~n"
-        "'~p' will be removed ~s.~n~n"
-      >>, [Key, Old, New, Old, When]).