[skip audit]remove privatetx (#916)

Author: rink1969

Cargo.lock

@@ -54,4 +54,3 @@ sm3hash = ["hashable/sm3hash", "libproto/sm3hash", "proof/sm3hash"]
 rabbitmq = ["pubsub/rabbitmq"]
 zeromq = ["pubsub/zeromq"]
 kafka = ["pubsub/kafka"]
-privatetx = ["core-executor/privatetx"]

cita-executor/Cargo.toml

@@ -45,7 +45,6 @@ rlp = { git = "https://github.com/citahub/cita-common.git", branch = "develop" }
 libproto = { git = "https://github.com/citahub/cita-common.git", branch = "develop" }
 proof = { git = "https://github.com/citahub/cita-common.git", branch = "develop" }
 jsonrpc-types = { git = "https://github.com/citahub/cita-common.git", branch = "develop" }
-zktx = { git = "https://github.com/citahub/zktx.git", optional = true }
 cita-database = "0.1"
 
 cita-ed25519 = { git = "https://github.com/citahub/cita-common.git", branch = "develop" }
@@ -73,6 +72,5 @@ sm2 = ["cita-crypto/sm2", "libproto/sm2", "proof/sm2"]
 sha3hash = ["hashable/sha3hash", "libproto/sha3hash", "proof/sha3hash"]
 blake2bhash = ["hashable/blake2bhash", "libproto/blake2bhash", "proof/blake2bhash"]
 sm3hash = ["hashable/sm3hash", "libproto/sm3hash", "proof/sm3hash"]
-privatetx = ["zktx"]
 hashlib-keccak = ["tiny-keccak"]
 hashlib-sha3 = ["sha3"]

cita-executor/core/Cargo.toml

@@ -17,7 +17,4 @@ pub mod factory;
 #[cfg(test)]
 mod simple_storage;
 
-#[cfg(feature = "privatetx")]
-mod zk_privacy;
-
 pub use factory::Contract;