prefs: Remove now unused toolbar style prefs

We no longer set a toolbar button style so remove some of the left over code for
handling it.

data/org.x.editor.gschema.xml.in

@@ -111,11 +111,6 @@
       <summary>Toolbar is Visible</summary>
       <description>Whether the toolbar should be visible in editing windows.</description>
     </key>
-    <key name="toolbar-buttons-style" type="s">
-      <default>'@TOOLBAR_STYLE@'</default>
-      <summary>Toolbar Buttons Style</summary>
-      <description>Style for the toolbar buttons.  Possible values are "XED_TOOLBAR_SYSTEM" to use the system's default style, "XED_TOOLBAR_ICONS" to display icons only, "XED_TOOLBAR_ICONS_AND_TEXT" to display both icons and text, and "XED_TOOLBAR_ICONS_BOTH_HORIZ" to display prioritized text beside icons. Note that the values are case-sensitive, so make sure they appear exactly as mentioned here.</description>
-    </key>
     <key name="statusbar-visible" type="b">
       <default>true</default>
       <summary>Status Bar is Visible</summary>

xed/xed-prefs-manager.c

@@ -359,76 +359,6 @@ DEFINE_BOOL_PREF (display_line_numbers,
 DEFINE_BOOL_PREF (toolbar_visible,
 		  GPM_TOOLBAR_VISIBLE)
 
-
-/* Toolbar suttons style */
-XedToolbarSetting 
-xed_prefs_manager_get_toolbar_buttons_style (void) 
-{
-	gchar *str;
-	XedToolbarSetting res;
-	
-	xed_debug (DEBUG_PREFS);
-	
-	str = xed_prefs_manager_get_string (GPM_TOOLBAR_BUTTONS_STYLE);
-
-	if (strcmp (str, "XED_TOOLBAR_ICONS") == 0)
-		res = XED_TOOLBAR_ICONS;
-	else
-	{
-		if (strcmp (str, "XED_TOOLBAR_ICONS_AND_TEXT") == 0)
-			res = XED_TOOLBAR_ICONS_AND_TEXT;
-		else 
-		{
-			if (strcmp (str, "XED_TOOLBAR_ICONS_BOTH_HORIZ") == 0)
-				res = XED_TOOLBAR_ICONS_BOTH_HORIZ;
-			else
-				res = XED_TOOLBAR_SYSTEM;
-		}
-	}
-
-	g_free (str);
-
-	return res;
-}
-
-void
-xed_prefs_manager_set_toolbar_buttons_style (XedToolbarSetting tbs)
-{
-	const gchar * str;
-	
-	xed_debug (DEBUG_PREFS);
-
-	switch (tbs)
-	{
-		case XED_TOOLBAR_ICONS:
-			str = "XED_TOOLBAR_ICONS";
-			break;
-
-		case XED_TOOLBAR_ICONS_AND_TEXT:
-			str = "XED_TOOLBAR_ICONS_AND_TEXT";
-			break;
-
-	        case XED_TOOLBAR_ICONS_BOTH_HORIZ:
-			str = "XED_TOOLBAR_ICONS_BOTH_HORIZ";
-			break;
-		default: /* XED_TOOLBAR_SYSTEM */
-			str = "XED_TOOLBAR_SYSTEM";
-	}
-
-	xed_prefs_manager_set_string (GPM_TOOLBAR_BUTTONS_STYLE,
-					str);
-
-}
-
-gboolean
-xed_prefs_manager_toolbar_buttons_style_can_set (void)
-{
-	xed_debug (DEBUG_PREFS);
-	
-	return xed_prefs_manager_key_is_writable (GPM_TOOLBAR_BUTTONS_STYLE);
-
-}
-
 /* Statusbar visiblity */
 DEFINE_BOOL_PREF (statusbar_visible,
 		  GPM_STATUSBAR_VISIBLE)

xed/xed-prefs-manager.h

@@ -74,7 +74,6 @@
 
 /* UI */
 #define GPM_TOOLBAR_VISIBLE			"toolbar-visible"
-#define GPM_TOOLBAR_BUTTONS_STYLE	"toolbar-buttons-style"
 
 #define GPM_STATUSBAR_VISIBLE		"statusbar-visible"
 
@@ -115,13 +114,6 @@
 #define GPM_DEFAULT_AUTO_SAVE_INTERVAL	10 /* minutes */
 #define GPM_DEFAULT_MAX_RECENTS			5
 
-typedef enum {
-	XED_TOOLBAR_SYSTEM = 0,
-	XED_TOOLBAR_ICONS,
-	XED_TOOLBAR_ICONS_AND_TEXT,
-	XED_TOOLBAR_ICONS_BOTH_HORIZ
-} XedToolbarSetting;
-
 /** LIFE CYCLE MANAGEMENT FUNCTIONS **/
 
 gboolean		 xed_prefs_manager_init (void);
@@ -195,11 +187,6 @@ gboolean		 xed_prefs_manager_get_toolbar_visible	(void);
 void			 xed_prefs_manager_set_toolbar_visible	(gboolean tv);
 gboolean		 xed_prefs_manager_toolbar_visible_can_set	(void);
 
-/* Toolbar buttons style */
-XedToolbarSetting 	 xed_prefs_manager_get_toolbar_buttons_style	(void);
-void 			 xed_prefs_manager_set_toolbar_buttons_style	(XedToolbarSetting tbs);
-gboolean		 xed_prefs_manager_toolbar_buttons_style_can_set (void);
-
 /* Statusbar visible */
 gboolean		 xed_prefs_manager_get_statusbar_visible	(void);
 void			 xed_prefs_manager_set_statusbar_visible	(gboolean sv);

xed/xed-window.c

@@ -399,7 +399,6 @@ set_toolbar_style (XedWindow *window,
                    XedWindow *origin)
 {
     gboolean visible;
-    XedToolbarSetting style;
     GtkAction *action;
 
     if (origin == NULL)