libol: Drop recipe

In past it was needed by syslog-ng until it was bundled into syslog-ng
and once syslog-ng was upgraded [1] this recipe became more or less unused

This package is now included in the syslog-ng 1.6.x or newer release tarball

[1] https://git.openembedded.org/meta-openembedded/commit/?id=1a6e16bcb1145df51b15c19df0d7ef655b683f5e

Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-oe/recipes-core/packagegroups/packagegroup-meta-oe.bb

@@ -827,7 +827,6 @@ RDEPENDS:packagegroup-meta-oe-support ="\
     liblinebreak \
     mailcap \
     liboauth \
-    libol \
     mg \
     monit \
     mscgen \

meta-oe/recipes-support/libol/libol/configure.patch

@@ -1,14 +0,0 @@
-Index: libol-0.3.18/configure.in
-===================================================================
---- libol-0.3.18.orig/configure.in	2006-03-27 14:44:52.000000000 +0000
-+++ libol-0.3.18/configure.in	2014-07-18 07:05:56.029481372 +0000
-@@ -1,7 +1,7 @@
- dnl Process this file with autoconf to produce a configure script.
--AC_INIT(src/abstract_io.c)
-+AC_INIT(libol, "0.3.18")
- 
--AM_INIT_AUTOMAKE(libol, "0.3.18", 1)
-+AM_INIT_AUTOMAKE([foreign])
- if test -n "$SNAPSHOT_VERSION"; then
-         VERSION=$VERSION+$SNAPSHOT_VERSION
- fi

meta-oe/recipes-support/libol/libol_0.3.18.bb

@@ -1,20 +0,0 @@
-SUMMARY = "A tiny C support library"
-HOMEPAGE = "https://my.balabit.com/downloads/libol"
-SECTION = "libs"
-LICENSE = "GPL-2.0-only"
-LIC_FILES_CHKSUM = "file://COPYING;md5=c93c0550bd3173f4504b2cbd8991e50b"
-
-SRC_URI = "http://www.balabit.com/downloads/libol/0.3/${BP}.tar.gz \
-           file://configure.patch"
-SRC_URI[md5sum] = "cbadf4b7ea276dfa85acc38a1cc5ff17"
-SRC_URI[sha256sum] = "9de3bf13297ff882e02a1e6e5f6bf760a544aff92a9d8a1cf4328a32005cefe7"
-
-inherit autotools binconfig
-
-do_compile:prepend() {
-    install ${S}/utils/make_class.in ${B}/utils
-}
-
-do_install:append() {
-    rm -fr ${D}${bindir}
-}