remove ad2c from a hardcoded location

cmd/xfe/XfeWidgets/tests/ad2c

@@ -1,41 +0,0 @@
-#!/bin/sh
-#
-#	ad2c : Convert app-defaults file to C strings decls.
-#
-#	George Ferguson, ferguson@cs.rcohester.edu, 12 Nov 1990.
-#	19 Mar 1991 : gf
-#		Made it self-contained.
-#	6 Jan 1992 : mycroft@gnu.ai.mit.edu (Charles Hannum)
-#		Removed use of "-n" and ":read" label since Gnu and
-#		IBM sed print pattern space on "n" command. Still works
-#		with Sun sed, of course.
-#	7 Jan 1992: matthew@sunpix.East.Sun.COM (Matthew Stier)
-#		Escape quotes after escaping backslashes.
-#
-#   This file has been included with permission from the author.
-#   Fri Mar  6 01:40:58 PST 1998
-#
-
-sed '
-/^!/d
-/^$/d
-s/\\/\\\\/g
-s/\\$//g
-s/"/\\"/g
-s/^/"/
-: test
-/\\$/b slash
-s/$/",/
-p
-d
-: slash
-n
-/^!/d
-/^$/d
-s/"/\\"/g
-s/\\\\/\\/g
-s/\\n/\\\\n/g
-s/\\t/\\\\t/g
-s/\\f/\\\\f/g
-s/\\b/\\\\b/g
-b test' "$@"