Remove import

Author: jesperkha

nova_vm/src/ecmascript/builtins/temporal/plain_time/plain_time_prototype.rs

@@ -2,7 +2,7 @@
 // License, v. 2.0. If a copy of the MPL was not distributed with this
 // file, You can obtain one at https://mozilla.org/MPL/2.0/.
 
-use temporal_rs::options::{RoundingMode, ToStringRoundingOptions, Unit};
+use temporal_rs::options::{RoundingMode, ToStringRoundingOptions};
 
 use crate::{
     ecmascript::{