single-pool: Remove program / cli / js

Author: joncinque

single-pool/README.md

@@ -1,9 +1,2 @@
-## Solana Program Library Single-Validator Stake Pool
-
-The single-validator stake pool program is an upcoming SPL program that enables liquid staking with zero fees, no counterparty, and 100% capital efficiency.
-
-The program defines a canonical pool for every vote account, which can be initialized permissionlessly, and mints tokens in exchange for stake delegated to its designated validator.
-
-The program is a stripped-down adaptation of the existing multi-validator stake pool program, with approximately 80% less code, to minimize execution risk.
-
-On launch, users will only be able to deposit and withdraw active stake, but pending future stake program development, we hope to support instant sol deposits and withdrawals as well.
+NOTE: The single-pool program and clients are now maintained at
+[solana-program/single-pool](https://github.com/solana-program/single-pool).