Smith members can't revoke idty nor change its address

Cargo.toml

@@ -177,7 +177,6 @@ httparse = { opt-level = 3 }
 integer-sqrt = { opt-level = 3 }
 keccak = { opt-level = 3 }
 libm = { opt-level = 3 }
-librocksdb-sys = { opt-level = 3 }
 libsecp256k1 = { opt-level = 3 }
 libz-sys = { opt-level = 3 }
 mio = { opt-level = 3 }