patch 9.1.1495: Wayland: uses $XDG_SEAT to determine seat

Problem:  Wayland: uses $XDG_SEAT to determine seat to use
          (dr0bz, after v9.1.1485)
Solution: Do not try to determine the seat from $XDG_SEAT, remove the
          code that checks for this environment variable (Foxe Chen).

related: https://github.com/vim/vim/issues/5157#issuecomment-3015248239
closes: #17625

Signed-off-by: Foxe Chen <chen.foxe@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/runtime/doc/options.txt b/runtime/doc/options.txt
index a7dd6a9..1b6cae7 100644
--- a/runtime/doc/options.txt
+++ b/runtime/doc/options.txt
@@ -1,4 +1,4 @@
-*options.txt*	For Vim version 9.1.  Last change: 2025 Jun 28
+*options.txt*	For Vim version 9.1.  Last change: 2025 Jun 29
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -10086,8 +10086,7 @@
 	specifically the clipboard.  If the seat does not exist, then the
 	option will still be set to the new value, with the Wayland clipboard
 	being unavailable as a result.  If an empty value is passed then Vim
-	will attempt to use the value of $XDG_SEAT if it exists, if not then
-	it resorts to using the first seat found available.  Updating this
+	will attempt to use the first seat found available.  Updating this
 	option will also update |v:clipmethod|.
 
 				*'wlsteal'* *'wst'* *'nowlsteal'* *'nowst'*
diff --git a/src/version.c b/src/version.c
index f74b97b..657d68a 100644
--- a/src/version.c
+++ b/src/version.c
@@ -720,6 +720,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1495,
+/**/
     1494,
 /**/
     1493,
diff --git a/src/wayland.c b/src/wayland.c
index dc34925..3fef423 100644
--- a/src/wayland.c
+++ b/src/wayland.c
@@ -907,21 +907,14 @@
 
 /*
  * Return a seat with the give name/label. If none exists then NULL is returned.
- * If NULL or an empty string is passed as the label then $XDG_SEAT is used
- * else the first available seat found is used.
+ * If NULL or an empty string is passed as the label then the first available
+ * seat found is used.
  */
     static vwl_seat_T *
 vwl_get_seat(const char *label)
 {
     if ((STRCMP(label, "") == 0 || label == NULL) && vwl_seats.ga_len > 0)
-    {
-	const char *xdg_seat = (char*)mch_getenv("XDG_SEAT");
-
-	if (xdg_seat == NULL)
 	    return &((vwl_seat_T *)vwl_seats.ga_data)[0];
-	else
-	    label = xdg_seat;
-    }
 
     for (int i = 0; i < vwl_seats.ga_len; i++)
     {