chore: additional uses of time::Instant

Author: obycode

stackslib/src/cost_estimates/tests/cost_estimators.rs

@@ -1,5 +1,6 @@
 use std::env;
 use std::path::PathBuf;
+use std::time::Instant;
 
 use clarity::vm::costs::ExecutionCost;
 use clarity::vm::types::{PrincipalData, StandardPrincipalData};
@@ -11,7 +12,6 @@ use stacks_common::types::chainstate::{
 };
 use stacks_common::util::hash::{to_hex, Hash160, Sha512Trunc256Sum};
 use stacks_common::util::vrf::VRFProof;
-use time::Instant;
 
 use crate::chainstate::burn::ConsensusHash;
 use crate::chainstate::stacks::db::{StacksEpochReceipt, StacksHeaderInfo};

stackslib/src/cost_estimates/tests/fee_scalar.rs

@@ -1,5 +1,6 @@
 use std::env;
 use std::path::PathBuf;
+use std::time::Instant;
 
 use clarity::vm::costs::ExecutionCost;
 use clarity::vm::types::{PrincipalData, StandardPrincipalData};
@@ -11,7 +12,6 @@ use stacks_common::types::chainstate::{
 };
 use stacks_common::util::hash::{to_hex, Hash160, Sha512Trunc256Sum};
 use stacks_common::util::vrf::VRFProof;
-use time::Instant;
 
 use crate::chainstate::burn::ConsensusHash;
 use crate::chainstate::stacks::db::{StacksEpochReceipt, StacksHeaderInfo};