[gtk] docs: Small updates

[Matthias Clasen <matthiasc src gnome org>]

commit 00a61f92b607a453ccc1c51b0b5ab88410fb0f84
Author: Matthias Clasen <mclasen redhat com>
Date:   Fri Jul 13 10:06:10 2018 +0200

    docs: Small updates
    
    Remove a few references to no-longer-existing APIs.

 gdk/gdkcursor.c  | 19 +------------------
 gdk/gdksurface.c |  4 ++--
 2 files changed, 3 insertions(+), 20 deletions(-)
---
diff --git a/gdk/gdkcursor.c b/gdk/gdkcursor.c
index 1964d4fd59..be3dca2e98 100644
--- a/gdk/gdkcursor.c
+++ b/gdk/gdkcursor.c
@@ -61,12 +61,7 @@
  * the commonly available names that are shared with the CSS specification.
  * Other names may be available, depending on the platform in use.
  * Another option to create a cursor is to use gdk_cursor_new_from_texture()
- * and provide an image to use for the cursor. Depending on the #GdkDisplay
- * in use, the type of supported images may be limited. See
- * gdk_display_supports_cursor_alpha(),
- * gdk_display_supports_cursor_color(),
- * gdk_display_get_default_cursor_size() and
- * gdk_display_get_maximal_cursor_size() for the limitations that might apply.
+ * and provide an image to use for the cursor.
  *
  * To ease work with unsupported cursors, a fallback cursor can be provided.
  * If a #GdkSurface cannot use a cursor because of the reasons mentioned above,
@@ -346,18 +341,6 @@ gdk_cursor_new_from_name (const gchar *name,
  *
  * Creates a new cursor from a #GdkTexture.
  *
- * Not all GDK backends support RGBA cursors. If they are not
- * supported, a monochrome approximation will be displayed.
- * The functions gdk_display_supports_cursor_alpha() and
- * gdk_display_supports_cursor_color() can be used to determine
- * whether RGBA cursors are supported;
- * gdk_display_get_default_cursor_size() and
- * gdk_display_get_maximal_cursor_size() give information about
- * cursor sizes.
- *
- * On the X backend, support for RGBA cursors requires a
- * sufficently new version of the X Render extension.
- *
  * Returns: a new #GdkCursor.
  */
 GdkCursor *
diff --git a/gdk/gdksurface.c b/gdk/gdksurface.c
index 7348ce1fe8..bb9785a0a5 100644
--- a/gdk/gdksurface.c
+++ b/gdk/gdksurface.c
@@ -2917,7 +2917,7 @@ gdk_surface_get_cursor (GdkSurface *surface)
  *
  * Note that @cursor must be for the same display as @surface.
  *
- * Use gdk_cursor_new_for_display() or gdk_cursor_new_from_texture() to
+ * Use gdk_cursor_new_from_name() or gdk_cursor_new_from_texture() to
  * create the cursor. To make the cursor invisible, use %GDK_BLANK_CURSOR.
  * Passing %NULL for the @cursor argument to gdk_surface_set_cursor() means
  * that @surface will use the cursor of its parent surface. Most surfaces
@@ -3004,7 +3004,7 @@ gdk_surface_get_device_cursor (GdkSurface *surface,
  * @cursor: a #GdkCursor
  *
  * Sets a specific #GdkCursor for a given device when it gets inside @surface.
- * Use gdk_cursor_new_for_display() or gdk_cursor_new_from_texture() to create
+ * Use gdk_cursor_new_fromm_name() or gdk_cursor_new_from_texture() to create
  * the cursor. To make the cursor invisible, use %GDK_BLANK_CURSOR. Passing
  * %NULL for the @cursor argument to gdk_surface_set_cursor() means that
  * @surface will use the cursor of its parent surface. Most surfaces should