[gtk+/wip/baedert/gtkimageview] Remove useless casts from gdk_event_triggers_context_menu calls

[Timm Bäder <baedert src gnome org>]

commit 728ada58a3f0e8379c90c50baa571166dd60ab0b
Author: Timm Bäder <mail baedert org>
Date:   Mon Mar 21 21:52:18 2016 +0100

    Remove useless casts from gdk_event_triggers_context_menu calls

 gtk/gtkentry.c |    2 +-
 gtk/gtklabel.c |    2 +-
 gtk/gtkrange.c |    2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/gtk/gtkentry.c b/gtk/gtkentry.c
index 000322b..5d17af2 100644
--- a/gtk/gtkentry.c
+++ b/gtk/gtkentry.c
@@ -4374,7 +4374,7 @@ gtk_entry_multipress_gesture_pressed (GtkGestureMultiPress *gesture,
 
   tmp_pos = gtk_entry_find_position (entry, x);
 
-  if (gdk_event_triggers_context_menu ((GdkEvent *) event))
+  if (gdk_event_triggers_context_menu (event))
     {
       gtk_entry_do_popup (entry, event);
     }
diff --git a/gtk/gtklabel.c b/gtk/gtklabel.c
index a51d71f..0dc8874 100644
--- a/gtk/gtklabel.c
+++ b/gtk/gtklabel.c
@@ -4992,7 +4992,7 @@ gtk_label_multipress_gesture_pressed (GtkGestureMultiPress *gesture,
   info->in_drag = FALSE;
   info->select_words = FALSE;
 
-  if (gdk_event_triggers_context_menu ((GdkEvent *) event))
+  if (gdk_event_triggers_context_menu (event))
     gtk_label_do_popup (label, (GdkEventButton*) event);
   else if (button == GDK_BUTTON_PRIMARY)
     {
diff --git a/gtk/gtkrange.c b/gtk/gtkrange.c
index 1370703..db0215f 100644
--- a/gtk/gtkrange.c
+++ b/gtk/gtkrange.c
@@ -2695,7 +2695,7 @@ gtk_range_multipress_gesture_pressed (GtkGestureMultiPress *gesture,
                 NULL);
 
   if (priv->mouse_location == MOUSE_SLIDER &&
-      gdk_event_triggers_context_menu ((GdkEvent *)event))
+      gdk_event_triggers_context_menu (event))
     {
       gboolean handled;