Fix compilation warnings

src/fighter/state/dash.rs

@@ -1,6 +1,4 @@
-use std::hash::{Hash, Hasher};
-
-use bevy::prelude::*;
+use std::hash::{Hasher};
 
 use super::{FighterStateContext, FighterStateImpl, ground, run, wait, walk};
 use crate::fighter::FighterFacingDirection;