Fix: Zmq documentation (iotaledger#1665)

src/main/java/com/iota/iri/zmq/README.md

@@ -22,15 +22,6 @@ were traversed in a random walk simulation. It may subscribe to `rts`, for
 
 Topics currently found in the latest code are
 * `mctn` transactions traversed during random walk
-* `rts` information about walk terminations
-* `dnscv` neighbor DNS validations
-* `dnscc` neighbor DNS confirmations
-* `dnscu` neighbor DNS updates
-* `hmr` for the hit to miss ratio
-* `antn` for added non-tethered neighbors ( testnet only )
-* `rntn` for refused non-tethered neighbors
-* `rstat` for information about the tips requester
-* `rtl` for transactions randomly removed from the request list
 * `lmi` for the latest milestone index
 * `lmsi` for the latest solid milestone index
 * `lmhs` for the latest solid milestone hash