chore(contract_manager): remove CANTO from tokens.json (#2752)

Author: cprussin

contract_manager/store/tokens/Tokens.json

@@ -197,12 +197,6 @@
     "decimals": 18,
     "type": "token"
   },
-  {
-    "id": "CANTO",
-    "pythId": "972776d57490d31c32279c16054e5c01160bd9a2e6af8b58780c82052b053549",
-    "decimals": 18,
-    "type": "token"
-  },
   {
     "id": "NEON",
     "pythId": "d82183dd487bef3208a227bb25d748930db58862c5121198e723ed0976eb92b7",