[gtk/wip/muktupavels/update-documentation] display-x11: don't mention gdk_monitor_is_primary in the docs

[Alberts Muktupāvels <muktupavels src gnome org>]

commit 66af531ff33dffbcc0280be9f0dd10b7ff1a4926
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date:   Sun Feb 2 19:12:08 2020 +0200

    display-x11: don't mention gdk_monitor_is_primary in the docs
    
    https://gitlab.gnome.org/GNOME/gtk/merge_requests/1371#note_699272

 docs/reference/gdk/gdk4-sections.txt | 1 -
 gdk/x11/gdkdisplay-x11.c             | 3 +--
 2 files changed, 1 insertion(+), 3 deletions(-)
---
diff --git a/docs/reference/gdk/gdk4-sections.txt b/docs/reference/gdk/gdk4-sections.txt
index 35083c136a..0a4d80ba6c 100644
--- a/docs/reference/gdk/gdk4-sections.txt
+++ b/docs/reference/gdk/gdk4-sections.txt
@@ -1128,7 +1128,6 @@ gdk_monitor_get_scale_factor
 gdk_monitor_get_refresh_rate
 GdkSubpixelLayout
 gdk_monitor_get_subpixel_layout
-gdk_monitor_is_primary
 gdk_monitor_is_valid
 
 <SUBSECTION Standard>
diff --git a/gdk/x11/gdkdisplay-x11.c b/gdk/x11/gdkdisplay-x11.c
index b758d197e5..d270929cf0 100644
--- a/gdk/x11/gdkdisplay-x11.c
+++ b/gdk/x11/gdkdisplay-x11.c
@@ -2968,8 +2968,7 @@ gdk_x11_display_get_monitor (GdkDisplay *display,
  * such as panels should place themselves on the primary monitor.
  *
  * If no monitor is the designated primary monitor, any monitor
- * (usually the first) may be returned. To make sure there is a dedicated
- * primary monitor, use gdk_monitor_is_primary() on the returned monitor.
+ * (usually the first) may be returned.
  *
  * Returns: (transfer none): the primary monitor, or any monitor if no
  *     primary monitor is configured by the user