patch 8.1.0657: get error for using regexp recursively

Problem:    Get error for using regexp recursively. (Dominique Pelle)
Solution:   Do no check if connection is desired.
diff --git a/src/os_unix.c b/src/os_unix.c
index e87331d..eaf07f1 100644
--- a/src/os_unix.c
+++ b/src/os_unix.c
@@ -1742,8 +1742,8 @@
     static void
 may_restore_clipboard(void)
 {
-    // Only try restoring if we want the connection.
-    if (x_connect_to_server() && xterm_dpy_retry_count > 0)
+    // No point in restoring the connecting if we are exiting or dying.
+    if (!exiting && !v_dying && xterm_dpy_retry_count > 0)
     {
 	--xterm_dpy_retry_count;