Remove metrics dependency

Cargo.lock

@@ -2139,7 +2139,6 @@ dependencies = [
  "serde_derive 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.39 (registry+https://github.com/rust-lang/crates.io-index)",
  "solana-logger 0.13.0",
- "solana-metrics 0.13.0",
  "solana-netutil 0.13.0",
  "solana-sdk 0.13.0",
 ]

client/Cargo.toml

@@ -17,7 +17,6 @@ reqwest = "0.9.11"
 serde = "1.0.89"
 serde_derive = "1.0.88"
 serde_json = "1.0.39"
-solana-metrics = { path = "../metrics", version = "0.13.0" }
 solana-netutil = { path = "../netutil", version = "0.13.0" }
 solana-sdk = { path = "../sdk", version = "0.13.0" }
 

client/src/thin_client.rs

@@ -6,18 +6,15 @@
 use crate::rpc_client::RpcClient;
 use bincode::serialize_into;
 use log::*;
-use solana_metrics;
-use solana_metrics::influxdb;
 use solana_sdk::hash::Hash;
 use solana_sdk::packet::PACKET_DATA_SIZE;
 use solana_sdk::pubkey::Pubkey;
 use solana_sdk::signature::{Keypair, Signature};
-use solana_sdk::timing;
 use solana_sdk::transaction::Transaction;
 use std::error;
 use std::io;
 use std::net::{SocketAddr, UdpSocket};
-use std::time::{Duration, Instant};
+use std::time::Duration;
 
 /// An object for querying and sending transactions to the network.
 pub struct ThinClient {
@@ -145,19 +142,7 @@ impl ThinClient {
     }
 
     pub fn check_signature(&self, signature: &Signature) -> bool {
-        let now = Instant::now();
-        let result = self.rpc_client.check_signature(signature);
-
-        solana_metrics::submit(
-            influxdb::Point::new("thinclient")
-                .add_tag("op", influxdb::Value::String("check_signature".to_string()))
-                .add_field(
-                    "duration_ms",
-                    influxdb::Value::Integer(timing::duration_as_ms(&now.elapsed()) as i64),
-                )
-                .to_owned(),
-        );
-        result
+        self.rpc_client.check_signature(signature)
     }
 
     pub fn fullnode_exit(&self) -> io::Result<bool> {
@@ -165,12 +150,6 @@ impl ThinClient {
     }
 }
 
-impl Drop for ThinClient {
-    fn drop(&mut self) {
-        solana_metrics::flush();
-    }
-}
-
 pub fn create_client((rpc, tpu): (SocketAddr, SocketAddr), range: (u16, u16)) -> ThinClient {
     let (_, transactions_socket) = solana_netutil::bind_in_range(range).unwrap();
     ThinClient::new(rpc, tpu, transactions_socket)