remove civitia testnet (#599)

* remove civitia testnet

* remove channel

Author: JSHan94

testnets/civitia/assetlist.json

@@ -288,18 +288,6 @@
         "channel_id": "channel-178",
         "version": "ics721-1"
       },
-      {
-        "chain_id": "landlord-2",
-        "port_id": "transfer",
-        "channel_id": "channel-222",
-        "version": "ics20-1"
-      },
-      {
-        "chain_id": "landlord-2",
-        "port_id": "nft-transfer",
-        "channel_id": "channel-223",
-        "version": "ics721-1"
-      },
       {
         "chain_id": "culinaris-2",
         "port_id": "transfer",