harfbuzz: upgrade 2.1.3 -> 2.2.0

For changes, see:

https://cgit.freedesktop.org/harfbuzz/tree/NEWS?h=2.2.0

Remove do_configure_append after the patch to remove pkg.m4 was merged
upstream.

(From OE-Core rev: 6574bb752335ce48b873d17b24496bfb669bfefe)

Signed-off-by: Anuj Mittal <anuj.mittal@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-graphics/harfbuzz/harfbuzz_2.2.0.bb

@@ -11,8 +11,8 @@ LIC_FILES_CHKSUM = "file://COPYING;md5=e021dd6dda6ff1e6b1044002fc662b9b \
 DEPENDS = "glib-2.0 cairo fontconfig freetype"
 
 SRC_URI = "http://www.freedesktop.org/software/harfbuzz/release/${BP}.tar.bz2"
-SRC_URI[md5sum] = "38b0a17fca5ae38ff54fc22939ded371"
-SRC_URI[sha256sum] = "613264460bb6814c3894e3953225c5357402915853a652d40b4230ce5faf0bee"
+SRC_URI[md5sum] = "d9b8b2bc4d0cdf7f0824f4f0631d264b"
+SRC_URI[sha256sum] = "b7ccfcbd56b970a709e8b9ea9fb46c922c606c2feef8f086fb6a8492e530f810"
 
 inherit autotools pkgconfig lib_package gtk-doc
 
@@ -27,12 +27,6 @@ EXTRA_OECONF = " \
     --without-graphite2 \
 "
 
-do_configure_prepend() {
-    # This is ancient and can get used instead of the patched one we ship,
-    # so delete it. In 1.8.9 this should be removed upstream.
-    rm -f ${S}/m4/pkg.m4
-}
-
 PACKAGES =+ "${PN}-icu ${PN}-icu-dev"
 
 LEAD_SONAME = "libharfbuzz.so"