[glibmm] Gio::ActionGroup: Remove a nonsensical check.

[Murray Cumming <murrayc src gnome org>]

commit c619be2fadae1b5a87151db0b0adddf55584084a
Author: Murray Cumming <murrayc murrayc com>
Date:   Mon Oct 14 10:11:25 2013 +0200

    Gio::ActionGroup: Remove a nonsensical check.
    
    * gio/src/actiongroup.hg: get_action_state_hint():
      Remove a wrongly copy/pasted g_return_if_fail() line that
      causes a compiler error when the template is actually used.
      Ideally we would have tests for uses of templated methods.
      Bug #709963 (Johannes Meng, David Evans)

 gio/src/actiongroup.hg |    3 ---
 1 files changed, 0 insertions(+), 3 deletions(-)
---
diff --git a/gio/src/actiongroup.hg b/gio/src/actiongroup.hg
index 4d706d7..434b7fa 100644
--- a/gio/src/actiongroup.hg
+++ b/gio/src/actiongroup.hg
@@ -184,9 +184,6 @@ void ActionGroup::get_action_state_hint(const Glib::ustring& action_name, T_Valu
 
   typedef Glib::Variant<T_Value> type_glib_variant;
 
-  g_return_if_fail(
-    g_variant_type_equal(g_action_get_state_type(const_cast<GAction*>(gobj())), 
type_glib_variant::variant_type().gobj()));
-
   const Glib::VariantBase variantBase = get_action_state_hint_variant(action_name);
 
   // We can't check the type (a range) that will be returned before getting the range hint.