settings: remove connection tracking from NMManager

NMSysconfigSettings has the authoritative list of connections, no reason
to duplicate all that tracking code in NMManager.  Add the missing bits
that the manager had to NMSysconfigSettings, and point NMPolicy at the
settings object instead of NMManager for that.

src/main.c

@@ -453,6 +453,7 @@ main (int argc, char *argv[])
 	NMDBusManager *dbus_mgr = NULL;
 	NMSupplicantManager *sup_mgr = NULL;
 	NMDHCPManager *dhcp_mgr = NULL;
+	NMSysconfigSettings *settings = NULL;
 	GError *error = NULL;
 	gboolean wrote_pidfile = FALSE;
 	char *cfg_log_level = NULL, *cfg_log_domains = NULL;
@@ -672,7 +673,14 @@ main (int argc, char *argv[])
 		goto done;
 	}
 
-	manager = nm_manager_get (config,
+	settings = nm_sysconfig_settings_new (config, plugins, &error);
+	if (!settings) {
+		nm_log_err (LOGD_CORE, "failed to initialize settings storage.");
+		goto done;
+	}
+
+	manager = nm_manager_get (settings,
+	                          config,
 	                          plugins,
 	                          state_file,
 	                          net_enabled,
@@ -685,7 +693,7 @@ main (int argc, char *argv[])
 		goto done;
 	}
 
-	policy = nm_policy_new (manager, vpn_manager);
+	policy = nm_policy_new (manager, vpn_manager, settings);
 	if (policy == NULL) {
 		nm_log_err (LOGD_CORE, "failed to initialize the policy.");
 		goto done;
@@ -733,6 +741,9 @@ done:
 	if (manager)
 		g_object_unref (manager);
 
+	if (settings)
+		g_object_unref (settings);
+
 	if (vpn_manager)
 		g_object_unref (vpn_manager);