capnproto: rely on cmake.bbclass to put cmake package files in dev package

The cmake.bbclass in oe-core now ensures that ${libdir}/cmake and
${datadir}/cmake end up in the dev package, so recipes no longer need to
provide custom packaging rules to handles these files.

	http://git.openembedded.org/openembedded-core/commit/?id=d91dc4666683a96e9d03cbbd21b8a546f9069c93

Originally-conceived-by: Andre McCurdy <armccurdy@gmail.com>
Signed-off-by: Trevor Woerner <twoerner@gmail.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-oe/recipes-devtools/capnproto/capnproto_0.6.1.bb

@@ -20,7 +20,6 @@ S = "${WORKDIR}/git/c++"
 PACKAGE_BEFORE_PN = "${PN}-compiler"
 RDEPENDS_${PN}-dev += "${PN}-compiler"
 
-FILES_${PN}-dev += "${libdir}/cmake"
 FILES_${PN}-compiler = "${bindir}"
 
 BBCLASSEXTEND = "native nativesdk"