Remove needless conversion

The final version of the callgraph needs not be "reduced" for more efficient
copying.

lib/dialyzer/src/dialyzer_callgraph.erl

@@ -44,7 +44,6 @@
 	 %% module_postorder/1,
 	 module_postorder_from_funs/2,
 	 new/0,
-	 mini_callgraph/1,
 	 get_depends_on/2,
 	 get_required_by/2,
 	 in_neighbours/2,
@@ -129,25 +128,6 @@ new() ->
 	     self_rec       = ETSSelfRec,
 	     calls          = ETSCalls}.
 
--spec mini_callgraph(callgraph()) -> callgraph().
-
-mini_callgraph(#callgraph{digraph        = Digraph,
-			  active_digraph = ActiveDigraph,
-			  esc	         = Esc,
-			  name_map       = NameMap,
-			  rev_name_map   = RevNameMap,
-			  rec_var_map    = RecVarMap,
-			  self_rec       = SelfRecs,
-			  calls          = Calls}) ->
-  #callgraph{digraph        = Digraph,
-	     active_digraph = ActiveDigraph,
-	     esc	         = Esc,
-	     name_map       = NameMap,
-	     rev_name_map   = RevNameMap,
-	     rec_var_map    = RecVarMap,
-	     self_rec       = SelfRecs,
-	     calls          = Calls}.
-
 -spec delete(callgraph()) -> 'true'.
 
 delete(#callgraph{digraph = Digraph}) ->

lib/dialyzer/src/dialyzer_succ_typings.erl

@@ -314,7 +314,7 @@ compare_types_1([], [], _Strict, NotFixpoint) ->
 
 find_succ_typings(SCCs, #st{codeserver = Codeserver, callgraph = Callgraph,
 			    plt = Plt} = State) ->
-  Init = {Codeserver, dialyzer_callgraph:mini_callgraph(Callgraph), Plt},
+  Init = {Codeserver, Callgraph, Plt},
   NotFixpoint =
     ?timing("typesig",
 	    dialyzer_coordinator:parallel_job(typesig, SCCs, Init)),