Rationale

It is not that convenient for node operators to removeNodeID if they need to construct a transaction to call the SystemContract of method: removeNodeIDs()
It would be better if we can provide a tool or make it configurable.

Implementation

To support it in config.toml, from user's perspective, it could be like:

[Node.P2P]
EVNNodeIDsToRemove = ["nodeid1", "nodeid2"]
EVNNodeIDsToAdd = ["nodeid1", "nodeid3", "nodeid4"]

with valid validator key, it will remove "nodeid2", then add "nodeid3" and "nodeid4"

Notice:

• perform remove first, then perform add
• deduplicate, if nodeid is both included in EVNNodeIDsToRemove and EVNNodeIDsToAdd
• EVNNodeIDsToRemove = [], will not remove any nodeid
• EVNNodeIDsToRemove = ["0x0000000000000000000000000000000000000000000000000000000000000000"], will remove all nodeid
• Would be better if we can also have a tool to remove/add nodeids

Some Reference:
https://github.com/bnb-chain/bsc/pull/3045/files#diff-93626ed7f697f5674903a96e7153e88a4f2d8596df186489fb0c26557eb80889R97
https://github.com/bnb-chain/bsc/pull/3070/files#diff-acee05032ef99ca2f9b7dd27429bc2659189fe9cd96fc8699a95f4c7f18728c5R92 (How about rename EVNNodeIdsWhitelist to EVNNodeIDsWhitelist)