Remove antediluvian filename limit recommendation from tips.texi (Bug#8538).

* doc/lispref/tips.texi (Coding Conventions): Remove antediluvian filename limit recommendation.

doc/lispref/ChangeLog

+2011-05-28  Chong Yidong  <cyd@stupidchicken.com>
+
+	* tips.texi (Coding Conventions): Remove antediluvian filename
+	limit recommendation (Bug#8538).
+
 2011-05-27  Glenn Morris  <rgm@gnu.org>
 
 	* modes.texi (Auto Major Mode): Update for set-auto-mode changes.

doc/lispref/tips.texi

@@ -203,12 +203,6 @@ defined as the first argument.  That will help various tools find the
 definition automatically.  Avoid constructing the names in the macro
 itself, since that would confuse these tools.
 
-@item
-Please keep the names of your Emacs Lisp source files to 13 characters
-or less.  This way, if the files are compiled, the compiled files' names
-will be 14 characters or less, which is short enough to fit on all kinds
-of Unix systems.
-
 @item
 In some other systems there is a convention of choosing variable names
 that begin and end with @samp{*}.  We don't use that convention in Emacs