tree 9fcb7677d762951b6849b6ad9a38e2664f35c56f
parent 8fca66a3ba8ca1076d44a60fb15187e7c7fff482
author Bernie Innocenti <codewiz@google.com> 1537930324 +0900
committer Bernie Innocenti <codewiz@google.com> 1538537697 +0900

resolv: dead code removal

 - hostalias() and res_hostalias(): these were no-ops

 - res_opt(), res_querydomain(), p_option(), p_query(),
   res_isourserver(), res_nisourserver(): had no callers

 - res_ourserver_p(): made local to res_data.cpp

 - res_send_setqhook(): unused, DnsProxyListener sets the qhook directly
   in android_net_context, which is then copied to res_state by
   res_setnetcontext(). We can further simplify it later on.

Test: atest netd_integration_test
Change-Id: I70f72202e5b940986cac67dc99ab9461af882187