tests: Drop use of deprecated api

Don't use gtk_tree_view_set_rules_hint anymore.

tests/testtreeedit.c

@@ -252,7 +252,6 @@ main (gint argc, gchar **argv)
   tree_model = create_model ();
   tree_view = gtk_tree_view_new_with_model (tree_model);
   g_signal_connect (tree_view, "button_press_event", G_CALLBACK (button_press_event), NULL);
-  gtk_tree_view_set_rules_hint (GTK_TREE_VIEW (tree_view), TRUE);
   gtk_tree_view_set_headers_visible (GTK_TREE_VIEW (tree_view), TRUE);
 
   column = gtk_tree_view_column_new ();

tests/testtreeflow.c

@@ -148,7 +148,6 @@ main (int argc, char *argv[])
   gtk_tree_view_scroll_to_cell (GTK_TREE_VIEW (tree_view), path, NULL, TRUE, 0.5, 0.0);
   selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (tree_view));
   gtk_tree_selection_select_path (selection, path);
-  gtk_tree_view_set_rules_hint (GTK_TREE_VIEW (tree_view), TRUE);
   gtk_tree_view_set_headers_visible (GTK_TREE_VIEW (tree_view), FALSE);
   gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (tree_view),
 					       -1,

tests/testtreefocus.c

@@ -363,7 +363,6 @@ main (int argc, char *argv[])
 
   model = make_model ();
   tree_view = gtk_tree_view_new_with_model (model);
-  gtk_tree_view_set_rules_hint (GTK_TREE_VIEW (tree_view), TRUE);
   gtk_tree_selection_set_mode (gtk_tree_view_get_selection (GTK_TREE_VIEW (tree_view)),
 			       GTK_SELECTION_MULTIPLE);
   renderer = gtk_cell_renderer_text_new ();
@@ -480,7 +479,6 @@ main (int argc, char *argv[])
 
   tree_view = gtk_tree_view_new_with_model (model);
   g_object_unref (model);
-  gtk_tree_view_set_rules_hint (GTK_TREE_VIEW (tree_view), TRUE);
 
   gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (tree_view),
 					       -1, "Holiday Column",

tests/testtreesort.c

@@ -196,8 +196,6 @@ main (int argc, char *argv[])
   ssmodel = gtk_tree_model_sort_new_with_model (GTK_TREE_MODEL (smodel));
   g_object_unref (model);
 
-  gtk_tree_view_set_rules_hint (GTK_TREE_VIEW (tree_view), TRUE);
-
   renderer = gtk_cell_renderer_text_new ();
   column = gtk_tree_view_column_new_with_attributes ("First Word", renderer,
 						     "text", WORD_COLUMN_1,
@@ -268,8 +266,6 @@ main (int argc, char *argv[])
       
       
       tree_view2 = gtk_tree_view_new_with_model (smodel);
-      gtk_tree_view_set_rules_hint (GTK_TREE_VIEW (tree_view2), TRUE);
-      
       
       renderer = gtk_cell_renderer_text_new ();
       column = gtk_tree_view_column_new_with_attributes ("First Word", renderer,
@@ -340,7 +336,6 @@ main (int argc, char *argv[])
       
       
       tree_view3 = gtk_tree_view_new_with_model (ssmodel);
-      gtk_tree_view_set_rules_hint (GTK_TREE_VIEW (tree_view3), TRUE);
       
       renderer = gtk_cell_renderer_text_new ();
       column = gtk_tree_view_column_new_with_attributes ("First Word", renderer,

tests/testtreeview.c

@@ -316,17 +316,12 @@ set_columns_type (GtkTreeView *tree_view, ColumnsType type)
       col = gtk_tree_view_get_column (tree_view, 0);
     }
 
-  gtk_tree_view_set_rules_hint (tree_view, FALSE);
-  
   switch (type)
     {
     case COLUMNS_NONE:
       break;
 
     case COLUMNS_LOTS:
-      /* with lots of columns we need to turn on rules */
-      gtk_tree_view_set_rules_hint (tree_view, TRUE);
-      
       rend = gtk_cell_renderer_text_new ();
 
       col = gtk_tree_view_column_new_with_attributes ("Column 1",

tests/treestoretest.c

@@ -324,7 +324,6 @@ make_window (gint view_type)
       break;
     }
 
-  gtk_tree_view_set_rules_hint (GTK_TREE_VIEW (tree_view), TRUE);
   selection = G_OBJECT (gtk_tree_view_get_selection (GTK_TREE_VIEW (tree_view)));
   gtk_tree_selection_set_mode (GTK_TREE_SELECTION (selection), GTK_SELECTION_SINGLE);