message: remove unnecessary async from function
diff: @@ -121,9 +121,9 @@ class AddCustomToken extends React.Component<CustomTokenProps, CustomTokenState>
  this.setState(() => ({ isPending: false }))
  }
  - handleConfirm = async () => {
  + handleConfirm = () => {
  const { tokenStandard, tokenAddress, tokenSymbol, tokenDecimals, baseCurrency } = this.state
  - await actions[tokenStandard].addToken({
  + actions[tokenStandard].addToken({
  standard: tokenStandard,
  contractAddr: tokenAddress,
  symbol: tokenSymbol,
  