bump ff and group to pre-releases

Author: baloo

Cargo.lock

@@ -38,12 +38,3 @@ signature      = { git = "https://github.com/RustCrypto/traits.git" }
 # https://github.com/RustCrypto/crypto-bigint/pull/762
 # https://github.com/RustCrypto/crypto-bigint/pull/765
 crypto-bigint = { git = "https://github.com/RustCrypto/crypto-bigint.git" }
-
-# https://github.com/zkcrypto/ff/pull/122
-# https://github.com/zkcrypto/ff/pull/126
-# https://github.com/zkcrypto/ff/pull/127
-# https://github.com/zkcrypto/ff/pull/130
-ff = { git = "https://github.com/zkcrypto/ff.git", branch = "release-0.14.0" }
-
-# https://github.com/zkcrypto/group/pull/56
-group = { git = "https://github.com/pinkforest/group.git", branch = "bump-rand-0.9" }