doc: Nuke os_mac.txt

Pretty much all of this stuff is outdated.

Reviewed-by: @justinmk

runtime/doc/help.txt

@@ -160,7 +160,6 @@ Versions ~
 |vi_diff.txt|	Main differences between Vim and Vi
 						*sys-file-list*
 Remarks about specific systems ~
-|os_mac.txt|	Macintosh
 |os_win32.txt|	MS-Windows
 						*standard-plugin-list*
 Standard plugins ~

runtime/doc/os_mac.txt

@@ -1,116 +0,0 @@
-*os_mac.txt*    For Vim version 7.4.  Last change: 2006 Apr 30
-
-
-		  VIM REFERENCE MANUAL    by Bram Moolenaar et al.
-
-
-					*mac* *Mac* *macintosh* *Macintosh*
-
-This file documents the particularities of the Macintosh version of Vim.
-
-NOTE: This file is a bit outdated.  You might find more useful info here:
-	http://macvim.org/
-
-1. Filename Convention		|mac-filename|
-2. .vimrc an .vim files		|mac-vimfile|
-3. FAQ				|mac-faq|
-4. Known Lack			|mac-lack|
-5. Mac Bug Report		|mac-bug|
-6. Compiling Vim		|mac-compile|
-
-There was a Mac port for version 3.0 of Vim.  Here are the first few lines
-from the old file:
-
-VIM Release Notes
-Initial Macintosh release, VIM version 3.0
-19 October 1994
-
-Eric Fischer
-<enf1@midway.uchicago.edu>, <eric@jcp.uchicago.edu>, <etaoin@uchicago.edu>
-5759 N. Guilford Ave
-Indianapolis IN 46220 USA
-
-==============================================================================
-1. Filename Convention					*mac-filename*
-
-Starting with Vim version 7 you can just use the unix path separators with
-Vim. In order to determine if the specified filename is relative to the
-current folder or absolute (i.e. relative to the "Desktop"), the following
-algorithm is used:
-
-	If the path start by a "/", the path is absolute
-	If the path start by a ":", the path is relative
-	If the path doesn't start by neither a "/" nor ":",
-	  and a ":" is found before a "/" then the path is absolute
->
-		:e /HD/text
-		:e HD:text
-<	Edit the file "text" of the disk "HD" >
-		:e :src:main.c
-		:e src/main.c
-<	Edit the file "main.c" in the folder "src" in the current folder >
-		:e os_mac.c
-<	Edit the file "os_mac.c" in the current folder.
-
-You can use the |$VIM| and |$VIMRUNTIME|  variable. >
-
-		:so $VIMRUNTIME/syntax/syntax.vim
-
-==============================================================================
-2. .vimrc and .vim files				*mac-vimfile*
-
-It is recommended to use Unix style line separators for Vim scripts, thus a
-single newline character.
-
-When starting up Vim will load the $VIMRUNTIME/macmap.vim script to define
-default command-key mappings.
-
-On older systems files starting with a dot "." are discouraged, thus the rc
-files are named "vimrc" or "_vimrc" and "gvimrc" or "_gvimrc".  These files
-can be in any format (mac, dos or unix).
-
-==============================================================================
-3. Mac FAQ						*mac-faq*
-
-On the internet:  http://macvim.org/OSX/index.php#FAQ
-
-Q: I can't enter non-ASCII character in Apple Terminal.
-A: Under Window Settings, Emulation, make sure that "Escape non-ASCII
-   characters" is not checked.
-
-Q: How do I start the GUI from the command line?
-A: Assuming that Vim.app is located in /Applications:
-	open /Applications/Vim.app
-   Or:
-	/Applications/Vim.app/Contents/MacOS/Vim -g  {arguments}
-
-Q: How can I set $PATH to something reasonable when I start Vim.app from the
-   GUI or with open?
-A: The following trick works with most shells.  Put it in your vimrc file.
-   This is included in the system vimrc file included with the binaries
-   distributed at macvim.org . >
-	let s:path = system("echo echo VIMPATH'${PATH}' | $SHELL -l")
-	let $PATH = matchstr(s:path, 'VIMPATH\zs.\{-}\ze\n')
-
-==============================================================================
-4. Mac Lack						*mac-lack*
-
-In a terminal CTRL-^ needs to be entered as Shift-Control-6.  CTRL-@ as
-Shift-Control-2.
-
-==============================================================================
-5. Mac Bug Report					*mac-bug*
-
-When reporting any Mac specific bug or feature change, please use the vim-mac
-maillist |vim-mac|.  However, you need to be subscribed.  An alternative is to
-send a message to the current MacVim maintainers:
-
-	mac@vim.org
-
-==============================================================================
-6. Compiling Vim					*mac-compile*
-
-See the file "src/INSTALLmac.txt" that comes with the source files.
-
-
- vim:tw=78:ts=8:ft=help:norl:

runtime/doc/starting.txt

@@ -402,10 +402,9 @@ accordingly.  Vim proceeds in this order:
 	initializations until 4. are skipped.  Only the "-u" option is
 	interpreted.
 							*system-vimrc*
-     a. For Unix, MS-DOS, MS-Windows, and Macintosh, the system vimrc file is
+     a. For Unix, MS-Windows, and Macintosh, the system vimrc file is read for
-	read for initializations.  The path of this file is shown with the
+	initializations.  The path of this file is shown with the
 	":version" command.  Mostly it's "$VIM/vimrc".
-	For the Macintosh the $VIMRUNTIME/macmap.vim is read.
 
 						*VIMINIT* *EXINIT* *$MYVIMRC*
      b. Four places are searched for initializations.  The first that exists

runtime/doc/todo.txt

@@ -1140,9 +1140,6 @@ Now that colnr_T is int instead of unsigned, more type casts can be removed.
 'delcombine' does not work for the command line. (Tony Mechelynck, 2009 Jul
 20)
 
-Don't load macmap.vim on startup, turn it into a plugin. (Ron Aaron,
-2009 Apr 7)  Reminder Apr 14.
-
 Add "no_hlsearch" to winsaveview().
 
 Cursorline highlighting combines with Search ('hlsearch') but not with
@@ -1389,9 +1386,6 @@ The utf class table is missing some entries:
 Visual line mode doesn't highlight properly when 'showbreak' is used and the
 line doesn't fit. (Dasn, 2008 May 1)
 
-Mac: Move Carbon todo items to os_mac.txt.  Note that this version is frozen,
-try the Cocoa version.
-
 Mac: After a ":vsplit" the left scrollbar doesn't appear until 'columns' is
 changed or the window is resized.