remove unused dependency

Author: TomWambsgans

Cargo.toml

@@ -75,8 +75,6 @@ tracing-subscriber = { version = "0.3.23", features = ["std", "env-filter"] }
 tracing-forest = { version = "0.3.0", features = ["ansi", "smallvec"] }
 postcard = { version = "1.1.3", features = ["alloc"] }
 lz4_flex = "0.13.0"
-leansig = { git = "https://github.com/leanEthereum/leanSig", branch = "devnet4" }
-leansig_fast_keygen = { git = "https://github.com/TomWambsgans/leanSig", branch = "devnet4-fast-keygen" }
 
 [features]
 prox-gaps-conjecture = ["rec_aggregation/prox-gaps-conjecture"]