Revert "Reformat imports to a consistent style for imports"

This reverts commit 139d15cd84.

version/src/lib.rs

@@ -1,11 +1,9 @@
 #![cfg_attr(RUSTC_WITH_SPECIALIZATION, feature(min_specialization))]
 
 extern crate serde_derive;
-use {
-    serde_derive::{Deserialize, Serialize},
-    solana_sdk::sanitize::Sanitize,
-    std::{convert::TryInto, fmt},
-};
+use serde_derive::{Deserialize, Serialize};
+use solana_sdk::sanitize::Sanitize;
+use std::{convert::TryInto, fmt};
 #[macro_use]
 extern crate solana_frozen_abi_macro;