Standardize `apply_formatter_to_array`

[kclowes]

• Version: v6

What was wrong?

The eth-utils and web3 apply_formatter_to_array functions are slightly different. We should standardize on one or the other (probably the eth-utils version). The apply_formatter_to_array function in web3 converts the return value to an array and the eth-utils version does not.

[dbfreem]

if the desire is to standardize on one should we just remove apply_formatter_to_array from web3 and utilize the one from eth-utils?