message: simplified BSC case
diff: @@ -25,11 +25,7 @@ const MAINNET_BSC_RPC_ENDPOINTS = [
  'https://bsc-dataseed4.binance.org',
  ];
  -const CUSTOM_BSC_RPC_ENDPOINTS = [
  - process.env.BSC_RPC_3,
  - process.env.BSC_RPC_2,
  - process.env.BSC_RPC,
  -].filter(item => item);
  +const CUSTOM_BSC_RPC_ENDPOINTS = [process.env.BSC_RPC].filter(item => item);
  const BSC_RPC_ENDPOINTS = CUSTOM_BSC_RPC_ENDPOINTS.length
  ? CUSTOM_BSC_RPC_ENDPOINTS
  