Solana Core to Remove Floating-Point Ops to Prevent Consensus Forks

This is a structural reliability play, not a feature update. Floating-point operations are a known source of non-determinism across different hardware and software implementations, which can lead to divergent state and, ultimately, consensus forks. By stripping them from the core, Anza is prioritizing ledger finality over computational flexibility, which directly impacts validator operators and downstream application developers who rely on consistent execution. The key thing to watch is the migration timeline and whether any existing on-chain programs or system-level features depend on these operations, as their removal could silently alter behavior if not coordinated carefully.