netd.te: drop dccp_socket support

No SELinux domains can create dccp_socket instances, so it doesn't make
any sense to allow netd to minipulate already-open dccp sockets.

Bug: 35784697
Test: policy compiles.
Change-Id: I189844462cbab58ed58c24fbad6a392f6b035815

public/netd.te

@@ -72,7 +72,12 @@ allow netd permission_service:service_manager find;
 allow netd netd_listener_service:service_manager find;
 
 # Allow netd to operate on sockets that are passed to it.
-allow netd netdomain:{tcp_socket udp_socket rawip_socket dccp_socket tun_socket} {read write getattr setattr getopt setopt};
+allow netd netdomain:{
+  tcp_socket
+  udp_socket
+  rawip_socket
+  tun_socket
+} { read write getattr setattr getopt setopt };
 allow netd netdomain:fd use;
 
 ###