Remove unnecessary import from doc example

Author: Jondolf

README.md

@@ -17,7 +17,6 @@ and interpolating `Transform` using them:
 
 ```rust
 use bevy::prelude::*;
-use bevy_transform_interpolation::*;
 
 #[derive(Component, Deref, DerefMut)]
 struct Position(Vec3);

src/lib.rs

@@ -17,7 +17,6 @@
 //!
 //! ```rust
 //! use bevy::prelude::*;
-//! use bevy_transform_interpolation::*;
 //!
 //! #[derive(Component, Deref, DerefMut)]
 //! struct Position(Vec3);