Reduce Validator Set to 120

[JohnnyWyles]

Accidentally linked this thread in the subsequent proposal to cut to 100. Correct thread is here:

Reduce Validator Set to 100

This proposal reduces the size of the Osmosis active validator set from 120 to 100. This reduction is expected to enhance block processing performance, reduce consensus overhead, and simplify network operations while maintaining effective decentralization. Motivation Following Proposal 905, which reduced the validator set from 150 to 120, the Osmosis chain has experienced measurable performance improvements. These enhancements have contributed to faster block finality, more efficient network co…