openbsc: remove c-ares dependency

Since openbsc ed03661871ac8ee1715c04390d25631537b084ac, the c-ares
dependency has been removed.

Change-Id: I1bee6e0132252d0e5adc3517908dcf05021547ea
diff --git a/recipes-osmocom/openbsc/openbsc.inc b/recipes-osmocom/openbsc/openbsc.inc
index 90a0398..ba0d75c 100644
--- a/recipes-osmocom/openbsc/openbsc.inc
+++ b/recipes-osmocom/openbsc/openbsc.inc
@@ -1,5 +1,5 @@
 DESCRIPTION = "OpenBSC a Free Software GSM BaseStationController"
-DEPENDS = "libdbi libosmocore libosmo-sccp libosmo-abis libosmo-netif osmo-ggsn libsmpp34 bcg729 libgsm libpcap c-ares"
+DEPENDS = "libdbi libosmocore libosmo-sccp libosmo-abis libosmo-netif osmo-ggsn libsmpp34 bcg729 libgsm libpcap"
 HOMEPAGE = "http://openbsc.osmocom.org/"
 LICENSE = "AGPLv3+"
 LIC_FILES_CHKSUM = "file://COPYING;md5=73f1eb20517c55bf9493b7dd6e480788"