autoconf: remove automake patch enforcing --foreign

Since 2004 we've been carrying a patch[1] make autoreconf pass --foreign to
automake.  Presumably at the time this was due to many upstreams using
hand-coded bootstrap scripts that passed --foreign manually, but we were using
autoreconf.  These days many projects have added foreign to AM_INIT_AUTOMAKE and
use autoreconf directly, so this patch isn't as critical as it used to be.

(From OE-Core rev: 74b05bba64589da0e4439a4293559ad9670104bd)

Signed-off-by: Ross Burton <ross.burton@intel.com>

[1] oe-classic 2ab2a92eadaf2f80410d8746099f8a9b1b81ff91
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-devtools/autoconf/autoconf/autoreconf-foreign.patch

@@ -1,13 +0,0 @@
-Upstream-Status: Pending
-
---- autoconf-2.59/bin/autoreconf.in~autoreconf-foreign	2004-05-09 20:55:06.000000000 -0400
-+++ autoconf-2.59/bin/autoreconf.in	2004-05-09 20:55:55.000000000 -0400
-@@ -184,6 +184,8 @@
- 
-   $aclocal_supports_force = `$aclocal --help` =~ /--force/;
- 
-+  $automake   .= ' --foreign';
-+
-   # Dispatch autoreconf's option to the tools.
-   # --include;
-   $autoconf   .= join (' --include=', '', @include);

meta/recipes-devtools/autoconf/autoconf_2.69.bb

@@ -10,7 +10,6 @@ LIC_FILES_CHKSUM = "file://COPYING;md5=751419260aa954499f7abaabaa882bbe \
 SRC_URI += "file://autoreconf-include.patch \
 	    file://check-automake-cross-warning.patch \
 	    file://autoreconf-exclude.patch \
-	    file://autoreconf-foreign.patch \
 	    file://autoreconf-gnuconfigize.patch \
             file://config_site.patch \
             file://remove-usr-local-lib-from-m4.patch \