librsync: drop recipe

The recipe is now in meta-oe [1]

[1] - http://cgit.openembedded.org/meta-openembedded/tree/meta-oe/recipes-support/librsync/librsync_2.2.1.bb?h=master

Signed-off-by: Pierre-Jean Texier <pjtexier@koncepto.io>
Acked-by: Stefano Babic <sbabic@denx.de>

recipes-support/librsync/librsync_2.1.0.bb

-SUMMARY = "librsync is a library for calculating and applying network deltas, \
-with an interface designed to ease integration into diverse network applications."
-HOMEPAGE = "http://librsync.sourceforge.net"
-
-SECTION = "libs"
-
-LICENSE = "LGPLv2.1"
-LIC_FILES_CHKSUM = "file://COPYING;md5=d8045f3b8f929c1cb29a1e3fd737b499 \
-                    file://debian/copyright;md5=365dc7c8a0d1b88cfc01021bcc5d2a30"
-
-SRC_URI = "git://github.com/librsync/librsync.git;protocol=https"
-
-PV = "2.1.0+git${SRCPV}"
-SRCREV = "ac2274f562e74578b533ee734c8dada1aa5d93dc"
-
-S = "${WORKDIR}/git"
-
-DEPENDS = "bzip2 zlib"
-inherit cmake
-
-# Specify any options you want to pass to cmake using EXTRA_OECMAKE:
-EXTRA_OECMAKE = ""