opkg 0.1.8: remove it since it doesn't work

Remove opkg_0.1.8.bb and the related files since it doesn't work:

- It doesn't support the "--force_postinstall" option which is used by
  package_ipk.bbclass.

- It still doesn't work after remove the "--force_postinstall" option,
  it can't install the packages in complementary_pkgs.txt.

[YOCTO #3136]

(From OE-Core rev: 526da07578de2c6261d21bc339bca0d3b94d93cf)

Signed-off-by: Robert Yang <liezhi.yang@windriver.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-devtools/opkg/opkg-0.1.8/headerfix.patch

@@ -1,19 +0,0 @@
-Without this, the FILE reference in this header can cause compile issues.
-
-RP - 29/1/10
-
-Upstream-Status: Accepted
-
-Index: trunk/libopkg/pkg_dest.h
-===================================================================
---- trunk.orig/libopkg/pkg_dest.h	2010-01-29 09:37:22.000000000 +0000
-+++ trunk/libopkg/pkg_dest.h	2010-01-29 09:37:33.000000000 +0000
-@@ -18,6 +18,8 @@
- #ifndef PKG_DEST_H
- #define PKG_DEST_H
- 
-+#include <stdio.h>
-+
- typedef struct pkg_dest pkg_dest_t;
- struct pkg_dest
- {

meta/recipes-devtools/opkg/opkg-nogpg_0.1.8.bb

@@ -1,10 +0,0 @@
-require opkg_${PV}.bb
-
-DEPENDS = "curl"
-PROVIDES += "opkg"
-
-FILESEXTRAPATHS_prepend := "${THISDIR}/opkg-${PV}:"
-
-EXTRA_OECONF += "--disable-gpg"
-
-DEFAULT_PREFERENCE = "-1"

meta/recipes-devtools/opkg/opkg_0.1.8.bb

@@ -1,11 +0,0 @@
-require opkg.inc
-
-SRC_URI = "http://opkg.googlecode.com/files/opkg-${PV}.tar.gz \
-           file://add_vercmp.patch \
-           file://headerfix.patch \
-          "
-
-SRC_URI[md5sum] = "c714ce0e4863bf1315e3b6913ffe3299"
-SRC_URI[sha256sum] = "ff94bf30bd662d49c4b5057e3a0818d062731adaa555d59abd677ec32a3c1c60"
-
-PR = "${INC_PR}.0"