Revert "Merge pull request #477 from blockchain/FC-1637-list-ada-tokens" (#483)

This reverts commit 57ff93b, reversing
changes made to 216214c.

Author: vlenoir-bc

custody.json

@@ -1560,24 +1560,6 @@
     },
     "hwsSettings": null
   },
-  {
-    "symbol": "SNEK.ADA",
-    "displaySymbol": "SNEK",
-    "type": "CARDANO_TOKEN",
-    "nabuSettings": {
-      "custodialPrecision": 0
-    },
-    "hwsSettings": null
-  },
-  {
-    "symbol": "NIGHT.ADA",
-    "displaySymbol": "NIGHT",
-    "type": "CARDANO_TOKEN",
-    "nabuSettings": {
-      "custodialPrecision": 6
-    },
-    "hwsSettings": null
-  },
   {
     "symbol": "SNX",
     "displaySymbol": "SNX",

scripts/check-lists.py

@@ -224,8 +224,6 @@ def load_ref(
         ref = chains_dict.get("SOL").get(original_symbol)
     elif currency_type == "JETTON":
         ref = chains_dict.get("TON").get(original_symbol)
-    elif currency_type == "CARDANO_TOKEN":
-        ref = chains_dict.get("ADA").get(original_symbol)
     return ref