Drop rust-crypto unneeded dependency

Cargo.lock

@@ -325,7 +325,6 @@ dependencies = [
  "prometheus",
  "rayon",
  "rocksdb",
- "rust-crypto",
  "serde",
  "serde_derive",
  "serde_json",
@@ -375,12 +374,6 @@ version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a06f77d526c1a601b7c4cdd98f54b5eaabffc14d5f2f0296febdc7f357c6d3ba"
 
-[[package]]
-name = "gcc"
-version = "0.3.55"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8f5f3913fa0bfe7ee1fd8248b6b9f42a5af4b9d65ec2dd2c3c26132b950ecfc2"
-
 [[package]]
 name = "getrandom"
 version = "0.2.3"
@@ -745,29 +738,6 @@ dependencies = [
  "proc-macro2",
 ]
 
-[[package]]
-name = "rand"
-version = "0.3.23"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "64ac302d8f83c0c1974bf758f6b041c6c8ada916fbb44a609158ca8b064cc76c"
-dependencies = [
- "libc",
- "rand 0.4.6",
-]
-
-[[package]]
-name = "rand"
-version = "0.4.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "552840b97013b1a26992c11eac34bdd778e464601a4c2054b5f0bff7c6761293"
-dependencies = [
- "fuchsia-cprng",
- "libc",
- "rand_core 0.3.1",
- "rdrand",
- "winapi",
-]
-
 [[package]]
 name = "rand"
 version = "0.6.5"
@@ -959,31 +929,12 @@ version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e33e4fb37ba46888052c763e4ec2acfedd8f00f62897b630cadb6298b833675e"
 
-[[package]]
-name = "rust-crypto"
-version = "0.2.36"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f76d05d3993fd5f4af9434e8e436db163a12a9d40e1a58a726f27a01dfd12a2a"
-dependencies = [
- "gcc",
- "libc",
- "rand 0.3.23",
- "rustc-serialize",
- "time",
-]
-
 [[package]]
 name = "rustc-hash"
 version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "08d43f7aa6b08d49f382cde6a7982047c3426db949b1424bc4b7ec9ae12c6ce2"
 
-[[package]]
-name = "rustc-serialize"
-version = "0.3.24"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dcf128d1287d2ea9d80910b5f1120d0b8eede3fbf1abe91c40d39ea7d51e6fda"
-
 [[package]]
 name = "ryu"
 version = "1.0.5"
@@ -1008,7 +959,7 @@ version = "0.20.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ee5070fdc6f26ca5be6dcfc3d07c76fdb974a63a8b246b459854274145f5a258"
 dependencies = [
- "rand 0.6.5",
+ "rand",
  "secp256k1-sys",
  "serde",
 ]

Cargo.toml

@@ -31,7 +31,6 @@ hyper = "0.10"
 log = "0.4"
 prometheus = { version = "0.12", features = ["process"], optional = true }
 rayon = "1.5"
-rust-crypto = "0.2"
 serde = "1.0"
 serde_derive = "1.0"
 serde_json = "1.0"