Backout broken fix of debian broken autoconf

git-svn-id: http://svn.xiph.org/trunk/ao@1835 0101bb08-14d6-0310-b084-bc0e0c8e3800

Backout broken fix of debian broken autoconf
4d04577c · Gregory Maxwell · 452a9226 · 4d04577c
Commit 4d04577c authored 23 years ago by Gregory Maxwell
--- a/configure.in
+++ b/configure.in
 dnl Process this file with autoconf to produce a configure script.
-AC_PREREQ(2.50)

 AC_INIT(src/audio_out.c)