patch 8.2.4677: the Athena GUI support is outdated

Problem:    The Athena GUI support is outdated.
Solution:   Remove the Athena GUI code.

runtime/doc/gui.txt

@@ -25,7 +25,7 @@ Other GUI documentation:
 
 First you must make sure you actually have a version of Vim with the GUI code
 included.  You can check this with the ":version" command, it says "with xxx
-GUI", where "xxx" is X11-Motif, X11-Athena, Photon, GTK2, GTK3, etc., or
+GUI", where "xxx" is X11-Motif, Photon, GTK2, GTK3, etc., or
 "MS-Windows 32 bit GUI version".
 
 How to start the GUI depends on the system used.  Mostly you can run the
@@ -108,7 +108,7 @@ There are a number of options which only have meaning in the GUI version of
 Vim.  These are 'guicursor', 'guifont', 'guipty' and 'guioptions'.  They are
 documented in |options.txt| with all the other options.
 
-If using the Motif or Athena version of the GUI (but not for the GTK+ or
+If using the Motif version of the GUI (but not for the GTK+ or
 Win32 version), a number of X resources are available.  See |gui-resources|.
 
 Another way to set the colors for different occasions is with highlight
@@ -236,7 +236,7 @@ takes too much time or you don't like the cursor jumping to another line,
 include the 'h' flag in 'guioptions'.  Then the scrolling is limited by the
 text of the current cursor line.
 
-							*athena-intellimouse*
+							*motif-intellimouse*
 If you have an Intellimouse and an X server that supports using the wheel,
 then you can use the wheel to scroll the text up and down in gvim.  This works
 with XFree86 4.0 and later, and with some older versions when you add patches.
@@ -746,7 +746,7 @@ because the item will never be selected.  Use a single colon to keep it
 simple.
 
 							*gui-toolbar*
-The toolbar is currently available in the Win32, Athena, Motif, GTK+ (X11),
+The toolbar is currently available in the Win32, Motif, GTK+ (X11),
 and Photon GUI.  It should turn up in other GUIs in due course.  The
 default toolbar is setup in menu.vim.
 The display of the toolbar is controlled by the 'guioptions' letter 'T'.  You
@@ -862,7 +862,7 @@ The window toolbar uses the ToolbarLine and ToolbarButton highlight groups.
 When splitting the window the window toolbar is not copied to the new window.
 
 							*popup-menu*
-In the Win32, GTK+, Motif, Athena and Photon GUI, you can define the
+In the Win32, GTK+, Motif and Photon GUI, you can define the
 special menu "PopUp".  This is the menu that is displayed when the right mouse
 button is pressed, if 'mousemodel' is set to popup or popup_setpos.
 Example: >

runtime/doc/gui_x11.txt

@@ -1,11 +1,11 @@
-*gui_x11.txt*   For Vim version 8.2.  Last change: 2020 Jun 05
+*gui_x11.txt*   For Vim version 8.2.  Last change: 2022 Apr 03
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
 
 
 Vim's Graphical User Interface				*gui-x11* *GUI-X11*
-							*Athena* *Motif*
+							*Motif*
 1. Starting the X11 GUI		|gui-x11-start|
 2. GUI Resources		|gui-resources|
 3. Shell Commands		|gui-pty|
@@ -64,7 +64,7 @@ flag in 'guioptions'.  |-f|.
 ==============================================================================
 2. GUI Resources			*gui-resources* *.Xdefaults*
 
-If using the Motif or Athena version of the GUI (not for the KDE, GTK+ or Win32
+If using the Motif version of the GUI (not for the KDE, GTK+ or Win32
 version), a number of X resources are available.  You should use Vim's class
 "Vim" when setting these.  They are as follows:
 
@@ -96,7 +96,6 @@ version), a number of X resources are available.  You should use Vim's class
 			is same size as terminal that started it).
     scrollbarWidth	Thickness of scrollbars.
     borderWidth		Thickness of border around text area.
-    menuHeight		Height of the menu bar (only for Athena).
 
 A special font for italic, bold, and italic-bold text will only be used if
 the user has specified one via a resource.  No attempt is made to guess what
@@ -135,12 +134,9 @@ which make Motif applications look even better, highly recommended!
 
 The "Vim*fontList" is to set the menu font for Motif.  Example: >
 	Vim*menuBar*fontList:	     -*-courier-medium-r-*-*-10-*-*-*-*-*-*-*
-With Athena: >
-	Vim*menuBar*SmeBSB*font:     -*-courier-medium-r-*-*-10-*-*-*-*-*-*-*
-	Vim*menuBar*MenuButton*font: -*-courier-medium-r-*-*-10-*-*-*-*-*-*-*
 
 NOTE: A more portable, and indeed more correct, way to specify the menu font
-in either Motif or Athena is through the resource: >
+in Motif is through the resource: >
 	Vim.menuFont:	     -*-courier-medium-r-*-*-10-*-*-*-*-*-*-*
 Or, when compiled with the |+xfontset| feature: >
 	Vim.menuFontSet:     -*-courier-medium-r-*-*-10-*-*-*-*-*-*-*
@@ -255,7 +251,7 @@ For example: >
   :10vmenu File.Print :w !lpr -Php3
 <
 							*X11-icon*
-Vim uses a black&white icon by default when compiled with Motif or Athena.  A
+Vim uses a black&white icon by default when compiled with Motif.  A
 colored Vim icon is included as $VIMRUNTIME/vim32x32.xpm.  For GTK+, this is
 the builtin icon used.  Unfortunately, how you should install it depends on
 your window manager.  When you use this, remove the 'i' flag from
@@ -594,8 +590,7 @@ GTK+ files on your system.  When both GTK+ 2 and GTK+ 3 are available, GTK+ 2
 will be chosen unless --enable-gui=gtk3 is passed explicitly to configure.
 
 If the GTK+ files cannot be found, then the Motif files will be searched for.
-Finally, if this fails, the Athena files will be searched for.  If all three
-fail, the GUI will be disabled.
+If both fail, the GUI will be disabled.
 
 For GTK+, Vim's configuration process uses pkg-config(1) to check if the
 GTK+ required for a specified build is properly installed and usable.
@@ -621,10 +616,10 @@ explicitly to configure, and avoid passing --enable-gnome-check to that, as
 the functionality of the GNOME 2 support has already been consolidated in
 GTK+ 3.
 
-Otherwise, if you are using Motif or Athena, when you have the Motif or Athena
-files in a directory where configure doesn't look, edit the Makefile to enter
-the names of the directories.  Search for "GUI_INC_LOC" for an example to set
-the Motif directories, "CONF_OPT_X" for Athena.
+Otherwise, if you are using Motif, when you have the Motif files in a
+directory where configure doesn't look, edit the Makefile to enter the names
+of the directories.  Search for "GUI_INC_LOC" for an example to set
+the Motif directories.
 
 							*gui-x11-gtk*
 Currently, Vim supports both GTK+ 2 and GTK+ 3.
@@ -643,18 +638,11 @@ few problems, but you might make it compile and run with a bit of work, please
 send me the patches if you do).  The newest releases of LessTif have been
 reported to work fine too.
 
-							*gui-x11-athena*
-The Athena version uses the Xaw widget set by default.  If you have the 3D
-version, you might want to link with Xaw3d instead.  This will make the
-menus look a bit better.  Edit the Makefile and look for "XAW_LIB".  The
-scrollbars will remain the same, because Vim has its own, which are already
-3D (in fact, they look more like Motif).
-
-							*gui-x11-neXtaw*
-The neXtaw version is mostly like Athena, but uses different widgets.
+					    *gui-x11-athena* *gui-x11-neXtaw*
+Support for the Athena GUI and neXtaw was removed in patch 8.2.4677.
 
 							*gui-x11-misc*
-In general, do not try to mix files from different GTK+, Motif, Athena and X11
+In general, do not try to mix files from different GTK+, Motif and X11
 versions.  This will cause problems.  For example, using header files for
 X11R5 with a library for X11R6 probably doesn't work (although the linking
 won't give an error message, Vim will crash later).