Compiler warnings 20190123 (#2462)

* cleanup compiler warnings: unused imports

* rustfmt

* more compiler warnings

src/bin/cmd/wallet_tests.rs

@@ -14,11 +14,9 @@
 //! Test wallet command line works as expected
 #[cfg(test)]
 mod wallet_tests {
-	use chrono;
 	use clap;
 	use grin_util as util;
 	use grin_wallet;
-	use serde;
 
 	use grin_wallet::test_framework::{self, LocalWalletClient, WalletProxy};
 

src/bin/grin.rs

@@ -16,9 +16,7 @@
 
 #[macro_use]
 extern crate clap;
-use ctrlc;
 
-use serde_json;
 #[macro_use]
 extern crate log;
 use crate::config::config::{SERVER_CONFIG_FILE_NAME, WALLET_CONFIG_FILE_NAME};
@@ -31,9 +29,7 @@ use grin_core as core;
 use grin_p2p as p2p;
 use grin_servers as servers;
 use grin_util as util;
-use grin_wallet;
 use std::process::exit;
-use term;
 
 mod cmd;
 pub mod tui;