fix: op gas oracles (#513)

* fix op gas oracles

* fix to not use destructure

* remove array

* fix bignumbrt

src/providers/v3/gas-data-provider.ts

@@ -54,7 +54,7 @@ export class OptimismGasDataProvider
  providerConfig?: ProviderConfig
  ): Promise<OptimismGasData> {
  // TODO: Also get the gasPrice from GasPriceOracle.sol
- const funcNames = ['l1BaseFee', 'scalar', 'decimals', 'overhead'];
+ const funcNames = ['l1BaseFee', 'decimals'];
  const tx =
  await this.multicall2Provider.callMultipleFunctionsOnSameContract<
  undefined,
@@ -68,9 +68,7 @@ export class OptimismGasDataProvider
 
  if (
  !tx.results[0]?.success ||
- !tx.results[1]?.success ||
- !tx.results[2]?.success ||
- !tx.results[3]?.success
+ !tx.results[1]?.success
  ) {
  log.info(
  { results: tx.results },
@@ -81,16 +79,17 @@ export class OptimismGasDataProvider
  );
  }
 
+ // TODO: replace the hardcoded scalar and overhead with op gas estimate sdk
  const { result: l1BaseFee } = tx.results![0];
- const { result: scalar } = tx.results![1];
- const { result: decimals } = tx.results![2];
- const { result: overhead } = tx.results![3];
+ const scalar = BigNumber.from(1)
+ const { result: decimals } = tx.results![1];
+ const overhead = BigNumber.from(0);
 
  return {
  l1BaseFee: l1BaseFee[0],
- scalar: scalar[0],
+ scalar: scalar,
  decimals: decimals[0],
- overhead: overhead[0],
+ overhead: overhead,
  };
  }
 }