Remove KAT OFT token from Arbitrum and Polygon (#132)

* Remove KAT OFT token from Arbitrum and Polygon

Follow-up to #131. Katana team clarified that the KAT OFT contracts on
Arbitrum (42161) and Polygon (137) were decoy deployments made pre-TGE
and have not been enabled — bridging on those routes will revert. Only
Mainnet, Base, and Katana are valid KAT OFT routes.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* update index

---------

Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
Co-authored-by: PK <peter.kieltyka@gmail.com>

Author: 3 people

index/arbitrum/erc20.json

@@ -928,20 +928,6 @@
         "coingeckoId": "gho",
         "featureIndex": 28
       }
-    },
-    {
-      "chainId": 42161,
-      "address": "0xD5390300c5DB71F80d46f0fA9983Fc72D4d1e3da",
-      "name": "Katana Network Token",
-      "symbol": "KAT",
-      "decimals": 18,
-      "logoURI": "https://assets.sequence.info/images/tokens/large/747474/0x7f1f4b4b29f5058fa32cc7a97141b8d7e5abdc2d.webp",
-      "extensions": {
-        "originChainId": 747474,
-        "originAddress": "0x7f1f4b4b29f5058fa32cc7a97141b8d7e5abdc2d",
-        "featured": true,
-        "featureIndex": 5
-      }
     }
   ],
   "version": {

index/index.json

@@ -28,7 +28,7 @@
       "chainId": 42161,
       "tokenLists": {
         "erc1155.json": "efdf23b5c46d712ebba7b3fd5226518b4dd190badda613b3a5718d178a67f3e9",
-        "erc20.json": "7179bb59718ab03c5789c493c7ae71913abf9b6a9ff72cc778ffc1e6a6e6c742",
+        "erc20.json": "85b0ea677c24a046600349518e0e4558328a9c58c1c179b43f36b614b04c797c",
         "erc721.json": "e8a31ae32437b84c1bfdc91d51a14c0d401ddd703ebe233aa4cc30ed2c236dc7",
         "misc.json": "7fdcd6fbf97166c6c38d0b7c59d5f34beeb611cdaea6fe0c7bf37ed9b4b3ad83"
       }
@@ -250,7 +250,7 @@
       "chainId": 137,
       "tokenLists": {
         "erc1155.json": "f6a710897facb2b4caa28a78694166302811cbd31139d04cccdc4a3e4a18a36c",
-        "erc20.json": "5ac68e38186b201ced1bf7d5743b814ce76c015bdfc0be8168da58a727f19433",
+        "erc20.json": "f00cfe97c0ccbf96c6d2c43a0e1baf979410dcaddc3a2d23f95c47b2dea7df68",
         "erc721.json": "e32b38f33246eb5dc67bacbb7d72ac0612060cc20aed7d628c30320708fff62f",
         "misc.json": "80ed5add20b07abafcd9ced20d8cdc0ba6a588b724320c66739e1db3d264d503"
       }

index/polygon/erc20.json

@@ -8270,20 +8270,6 @@
           "useOnChainBalance": true
         }
       }
-    },
-    {
-      "chainId": 137,
-      "address": "0xD5390300c5DB71F80d46f0fA9983Fc72D4d1e3da",
-      "name": "Katana Network Token",
-      "symbol": "KAT",
-      "decimals": 18,
-      "logoURI": "https://assets.sequence.info/images/tokens/large/747474/0x7f1f4b4b29f5058fa32cc7a97141b8d7e5abdc2d.webp",
-      "extensions": {
-        "originChainId": 747474,
-        "originAddress": "0x7f1f4b4b29f5058fa32cc7a97141b8d7e5abdc2d",
-        "featured": true,
-        "featureIndex": 5
-      }
     }
   ],
   "version": {