clatd.c: remove unsetenv("ANDROID_DNS_MODE")
am: cc94e5f253

Change-Id: I6e72eda090df072c75b894b96204508943c4bdc6
diff --git a/clatd.c b/clatd.c
index d57ea59..0b69238 100644
--- a/clatd.c
+++ b/clatd.c
@@ -503,10 +503,6 @@
     exit(1);
   }
 
-  // When run from netd, the environment variable ANDROID_DNS_MODE is set to
-  // "local", but that only works for the netd process itself.
-  unsetenv("ANDROID_DNS_MODE");
-
   configure_interface(uplink_interface, plat_prefix, &tunnel, net_id);
 
   update_clat_ipv6_address(&tunnel, uplink_interface);