Removing previous_block_votes from types/src/account_config/events/new_block.rs
Removing previous_block_votes from types/src/account_config/events/new_block.rs

Closes: #4148
Approved by: davidiw

libra/libra,aptos-labs/aptos-core,aptos-labs/aptos-core,libra/libra,aptos-labs/aptos-core,aptos-labs/aptos-core,libra/libra,libra/libra,libra/libra,aptos-labs/aptos-core,aptos-labs/aptos-core,aptos-labs/aptos-core