maybe don't set completion-ignore-case to t on w32 ?

[John Paul Wallington]

Is it necessary to set `completion-ignore-case' to t in w32-fns.el for
the purpose of ignoring case on file-name completion now that we have
`read-file-name-completion-ignore-case' that defaults to t on
MS-Windows systems?

I'm using an MS-Windows system here, and M-x cust[TAB] gives `Custom-'
prefixed commands where I would only get `customize-' prefixed commands
with `completion-ignore-case' set to t.

Proposed change:

--- w32-fns.el  21 Jan 2007 03:53:10 +0000      1.64
+++ w32-fns.el  04 Mar 2007 20:39:57 +0000      
@@ -43,9 +43,6 @@
 (define-key function-key-map [M-backspace] [?\M-\177])
 (define-key function-key-map [C-M-backspace] [\C-\M-delete])
 
-;; Ignore case on file-name completion
-(setq completion-ignore-case t)
-
 ;; Map all versions of a filename (8.3, longname, mixed case) to the
 ;; same buffer.
 (setq find-file-visit-truename t)