fix polygon rpc

Author: aditya520

contract_manager/store/chains/EvmChains.json

@@ -246,7 +246,7 @@
   {
     "id": "polygon",
     "mainnet": true,
-    "rpcUrl": "http://127.0.0.1:8545",
+    "rpcUrl": "https://polygon-rpc.com",
     "networkId": 137,
     "type": "EvmChain",
     "nativeToken": "MATIC"
@@ -1279,19 +1279,5 @@
     "rpcUrl": "https://rpc.camp.raas.gelato.cloud",
     "networkId": 484,
     "type": "EvmChain"
-  },
-  {
-    "id": "ethereal_devnet",
-    "mainnet": false,
-    "rpcUrl": "https://rpc-ethereal-devnet-0.t.conduit.xyz/",
-    "networkId": 13374201,
-    "type": "EvmChain"
-  },
-  {
-    "id": "ethereal_testnet_v2",
-    "mainnet": false,
-    "rpcUrl": "https://rpc-ethereal-testnet-0.t.conduit.xyz",
-    "networkId": 13374202,
-    "type": "EvmChain"
   }
 ]