fix couple of warnings

rpc/src/v1/impls/raw.rs

@@ -49,8 +49,6 @@ impl RawClientCore {
 		lock_time: Option<u32>,
 		expiry_height: Option<u32>,
 	) -> Result<GlobalTransaction, String> {
-		use chain;
-		use keys;
 		use global_script::Builder as ScriptBuilder;
 
 		// overwinter is active atm => assume that all new transactions are created for sapling era

verification/src/lib.rs

@@ -131,8 +131,8 @@ pub use work::{work_required, is_valid_proof_of_work, is_valid_proof_of_work_has
 pub use deployments::Deployments;
 pub use tree_cache::TreeCache;
 
-/// Blocks verification level.
 bitflags! {
+	/// Blocks verification level.
 	pub struct VerificationLevel: u32 {
 		/// Base level: perform full block verification.
 		const FULL = 0x00000001;