doc: vi_diff: Remove 'Command line arguments' section

In regards to Nvim, it's very outdated; for an updated list of such
arguments refer to the manual page or `nvim --help`.  In all other
regards, it's of little to no use to end-users.

runtime/doc/starting.txt

@@ -28,8 +28,6 @@ More generally, Vim is started with:
 Option arguments and file name arguments can be mixed, and any number of them
 can be given.  However, watch out for options that take an argument.
 
-For compatibility with various Vi versions, see	|cmdline-arguments|.
-
 Exactly one out of the following five items may be used to choose how to
 start editing:
 

runtime/doc/vi_diff.txt

@@ -14,7 +14,6 @@ mentioned in other files and gives an overview.
 2. Limits				|limits|
 3. The most interesting additions	|vim-additions|
 4. Other vim features			|other-features|
-5. Command-line arguments		|cmdline-arguments|
 
 ==============================================================================
 1. Missing options					*missing-options*
@@ -724,176 +723,5 @@ changing files.
 The "No lines in buffer" message is a normal message instead of an error
 message, since that may cause a mapping to be aborted.
 
-==============================================================================
-5. Command-line arguments				*cmdline-arguments*
-
-Different versions of Vi have different command-line arguments.  This can be
-confusing.  To help you, this section gives an overview of the differences.
-
-Five variants of Vi will be considered here:
-	Elvis	Elvis version 2.1b
-	Nvi	Nvi version 1.79
-	Posix	Posix 1003.2
-	Vi	Vi version 3.7 (for Sun 4.1.x)
-	Vile	Vile version 7.4 (incomplete)
-	Vim	Vim version 5.2
-
-Only Vim is able to accept options in between and after the file names.
-
-+{command}	Elvis, Nvi, Posix, Vi, Vim: Same as "-c {command}".
-
--		Nvi, Posix, Vi: Run Ex in batch mode.
-		Vim: Read file from stdin (use -s for batch mode).
-
---		Vim: End of options, only file names are following.
-
---cmd {command}	Vim: execute {command} before sourcing vimrc files.
-
---echo-wid	Vim: GTK+ echoes the Window ID on stdout
-
---help		Vim: show help message and exit.
-
---literal	Vim: take file names literally, don't expand wildcards.
-
---nofork	Vim: same as -f
-
---noplugin[s]	Vim: Skip loading plugins.
-
---remote	Vim: edit the files in another Vim server
-
---remote-expr {expr}	Vim: evaluate {expr} in another Vim server
-
---remote-send {keys}	Vim: send {keys} to a Vim server and exit
-
---remote-silent {file}	Vim: edit the files in another Vim server if possible
-
---remote-wait	Vim: edit the files in another Vim server and wait for it
-
---remote-wait-silent	Vim: like --remote-wait, no complaints if not possible
-
---role {role}	Vim: GTK+ 2: set role of main window
-
---serverlist	Vim: Output a list of Vim servers and exit
-
---servername {name}	Vim: Specify Vim server name
-
---socketid {id}		Vim: GTK window socket to run Vim in
-
---windowid {id}		Vim: Win32 window ID to run Vim in
-
---version	Vim: show version message and exit.
-
--?		Vile: print usage summary and exit.
-
--a		Elvis: Load all specified file names into a window (use -o for
-		Vim).
-
--A		Vim: Start in Arabic mode (when compiled with Arabic).
-
--b {blksize}	Elvis: Use {blksize} blocksize for the session file.
--b		Vim: set 'binary' mode.
-
--C		Vim: Compatible mode.
-
--c {command}	Elvis, Nvi, Posix, Vim: run {command} as an Ex command after
-		loading the edit buffer.
-		Vim: allow up to 10 "-c" arguments
-
--d		Vim: start with 'diff' set. |diff-mode|
-
--D		Vim: debug mode.
-
--e		Elvis, Nvi, Vim: Start in Ex mode.
-
--E		Vim: Start in improved Ex mode |gQ|.
-
--f		Vim: Run GUI in foreground.
--f {session}	Elvis: Use {session} as the session file.
-
--F		Vim: Start in Farsi mode (when compiled with Farsi).
-		Nvi: Fast start, don't read the entire file when editing
-		starts.
-
--G {gui}	Elvis: Use the {gui} as user interface.
-
--g		Vim: Start GUI.
--g N		Vile: start editing at line N
-
--h		Vim: Give help message.
-		Vile: edit the help file
-
--H		Vim: start Hebrew mode (when compiled with it).
-
--i		Elvis: Start each window in Insert mode.
--i {viminfo}	Vim: Use {viminfo} for viminfo file.
-
--L		Vim: Same as "-r" (also in some versions of Vi).
-
--l		Nvi, Vi, Vim: Set 'lisp' and 'showmatch' options.
-
--m		Vim: Modifications not allowed to be written, resets 'write'
-		option.
-
--M		Vim: Modifications not allowed, resets 'modifiable' and the
-		'write' option.
-
--N		Vim: No-compatible mode.
-
--n		Vim: No swap file used.
-
--nb[args]	Vim: open a NetBeans interface connection
-
--O[N]		Vim: Like -o, but use vertically split windows.
-
--o[N]		Vim: Open [N] windows, or one for each file.
-
--p[N]		Vim: Open [N] tab pages, or one for each file.
-
--P {parent-title} Win32 Vim: open Vim inside a parent application window
-
--q {name}	Vim: Use {name} for quickfix error file.
--q{name}	Vim: Idem.
-
--R		Elvis, Nvi, Posix, Vile, Vim: Set the 'readonly' option.
-
--r		Elvis, Nvi, Posix, Vi, Vim: Recovery mode.
-
--S		Nvi: Set 'secure' option.
--S {script}	Vim: source script after starting up.
-
--s		Nvi, Posix, Vim: Same as "-" (silent mode), when in Ex mode.
-		Elvis: Sets the 'safer' option.
--s {scriptin}	Vim: Read from script file {scriptin}; only when not in Ex
-		mode.
--s {pattern}	Vile: search for {pattern}
-
--t {tag}	Elvis, Nvi, Posix, Vi, Vim: Edit the file containing {tag}.
--t{tag}		Vim: Idem.
-
--T {term}	Vim: Set terminal name to {term}.
-
--u {vimrc}	Vim: Read initializations from {vimrc} file.
-
--U {gvimrc}	Vim: Read GUI initializations from {gvimrc} file.
-
--v		Nvi, Posix, Vi, Vim: Begin in Normal mode (visual mode, in Vi
-		terms).
-		Vile: View mode, no changes possible.
-
--V		Elvis, Vim: Verbose mode.
--V{nr}		Vim: Verbose mode with specified level.
-
--w {size}	Elvis, Posix, Nvi, Vi, Vim: Set value of 'window' to {size}.
--w{size}	Nvi, Vi: Same as "-w {size}".
--w {name}	Vim: Write to script file {name} (must start with non-digit).
-
--W {name}	Vim: Append to script file {name}.
-
--X		Vim: Don't connect to the X server.
-
--Z		Vim: restricted mode
-
-@{cmdfile}	Vile: use {cmdfile} as startup file.
-
 
  vim:tw=78:ts=8:ft=help:norl: