patch 8.2.4677: the Athena GUI support is outdated

Problem:    The Athena GUI support is outdated.
Solution:   Remove the Athena GUI code.
diff --git a/src/version.c b/src/version.c
index 4deb534..b2986d7 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4677,
+/**/
     4676,
 /**/
     4675,
@@ -10454,22 +10456,14 @@
 #  ifdef FEAT_GUI_MOTIF
     msg_puts(_("with X11-Motif GUI."));
 #  else
-#   ifdef FEAT_GUI_ATHENA
-#    ifdef FEAT_GUI_NEXTAW
-    msg_puts(_("with X11-neXtaw GUI."));
-#    else
-    msg_puts(_("with X11-Athena GUI."));
-#    endif
-#   else
-#    ifdef FEAT_GUI_HAIKU
+#   ifdef FEAT_GUI_HAIKU
     msg_puts(_("with Haiku GUI."));
-#    else
-#     ifdef FEAT_GUI_PHOTON
+#   else
+#    ifdef FEAT_GUI_PHOTON
     msg_puts(_("with Photon GUI."));
-#     else
-#      if defined(MSWIN)
+#    else
+#     if defined(MSWIN)
     msg_puts(_("with GUI."));
-#      endif
 #     endif
 #    endif
 #   endif