installd has moved on to Binder; goodbye socket!

After a series of recent commits, installd has fully migrated over
to Binder, and all socket-based communication has been removed.

Test: builds, boots, apps install fine, pre-OTA dexopt works
Bug: 13758960, 30944031
Change-Id: Ia67b6260de58240d057c99b1bbd782b44376dfb5

private/file_contexts

@@ -106,7 +106,6 @@
 /dev/socket/dnsproxyd	u:object_r:dnsproxyd_socket:s0
 /dev/socket/dumpstate	u:object_r:dumpstate_socket:s0
 /dev/socket/fwmarkd	u:object_r:fwmarkd_socket:s0
-/dev/socket/installd	u:object_r:installd_socket:s0
 /dev/socket/lmkd        u:object_r:lmkd_socket:s0
 /dev/socket/logd	u:object_r:logd_socket:s0
 /dev/socket/logdr	u:object_r:logdr_socket:s0

public/app.te

@@ -334,7 +334,6 @@ neverallow appdomain socket_device:sock_file write;
 
 # Unix domain sockets.
 neverallow appdomain adbd_socket:sock_file write;
-neverallow appdomain installd_socket:sock_file write;
 neverallow { appdomain -radio } rild_socket:sock_file write;
 neverallow appdomain vold_socket:sock_file write;
 neverallow appdomain zygote_socket:sock_file write;

public/file.te

@@ -217,7 +217,6 @@ type bluetooth_socket, file_type;
 type dnsproxyd_socket, file_type, mlstrustedobject;
 type dumpstate_socket, file_type;
 type fwmarkd_socket, file_type, mlstrustedobject;
-type installd_socket, file_type;
 type lmkd_socket, file_type;
 type logd_socket, file_type, mlstrustedobject;
 type logdr_socket, file_type, mlstrustedobject;

public/system_server.te

@@ -131,7 +131,6 @@ allow system_server node:rawip_socket node_bind;
 allow system_server self:tun_socket create_socket_perms_no_ioctl;
 
 # Talk to init and various daemons via sockets.
-unix_socket_connect(system_server, installd, installd)
 unix_socket_connect(system_server, lmkd, lmkd)
 unix_socket_connect(system_server, mtpd, mtp)
 unix_socket_connect(system_server, netd, netd)