Return InsufficientDelegation instead of InsufficientFunds or InsufficientStake where applicable #31206

Active on mainnet-beta (epoch 490), testnet (epoch 479) and devnet (epoch 521).

Introduced in solana-labs/solana PR #31202.

Feature id Bj2jmUsM2iRhfdLLDSTkhM5UQRQvQHm57HSmPibPtEyu.

Vortex

• Consensus leaderboard
• Fees leaderboard
• Validators
• Stake pools
• Decentralization
• Client versions
• Cluster status
• Governance
• Feature gates
• SIMDs
• Activity
• API and AI usage