Remove unnecessary imports (#567)

Fix for latest clippy / nightly upgrade

- [x] no changelog update needed

agb-hashmap/src/lib.rs

@@ -32,7 +32,6 @@ use core::{
     borrow::Borrow,
     fmt::Debug,
     hash::{BuildHasher, BuildHasherDefault, Hash},
-    iter::FromIterator,
     num::Wrapping,
     ops::Index,
 };
@@ -949,8 +948,6 @@ impl core::ops::Add<i32> for HashType {
 mod test {
     use core::{cell::RefCell, hash::Hasher};
 
-    use alloc::vec::Vec;
-
     use super::*;
 
     #[test]

agb-image-converter/src/palette256.rs

@@ -1,4 +1,4 @@
-use std::{collections::HashSet, iter::FromIterator};
+use std::collections::HashSet;
 
 use crate::{
     colour::Colour,

agb/examples/chicken.rs

@@ -11,7 +11,6 @@ use agb::{
     },
     input::Button,
 };
-use core::convert::TryInto;
 
 #[derive(PartialEq, Eq)]
 enum State {

agb/src/display/affine.rs

@@ -81,10 +81,7 @@
 //! # }
 //! ```
 
-use core::{
+use core::ops::{Mul, MulAssign};
-    convert::TryFrom,
-    ops::{Mul, MulAssign},
-};
 
 use agb_fixnum::{Num, Vector2D};
 

agb/src/display/bitmap3.rs

@@ -4,7 +4,7 @@ use super::{
     set_graphics_mode, set_graphics_settings, DisplayMode, GraphicsSettings, HEIGHT, WIDTH,
 };
 
-use core::{convert::TryInto, marker::PhantomData};
+use core::marker::PhantomData;
 
 const BITMAP_MODE_3: MemoryMapped2DArray<u16, { WIDTH as usize }, { HEIGHT as usize }> =
     unsafe { MemoryMapped2DArray::new(0x600_0000) };

agb/src/display/object/unmanaged/attributes.rs

@@ -183,8 +183,6 @@ enum ColourMode {
 
 #[allow(clippy::module_inception)]
 mod attributes {
-    use crate::display::Priority;
-
     use super::*;
 
     #[bitsize(16)]

agb/src/input.rs

@@ -1,7 +1,6 @@
 #![deny(missing_docs)]
 use crate::fixnum::Vector2D;
 use bitflags::bitflags;
-use core::convert::From;
 
 /// Tri-state enum. Allows for -1, 0 and +1.
 /// Useful if checking if the D-Pad is pointing left, right, or unpressed.

examples/the-dungeon-puzzlers-lament/src/level.rs

@@ -162,7 +162,6 @@ impl Level {
 
 mod levels {
     use super::*;
-    use agb::fixnum::Vector2D;
 
     include!(concat!(env!("OUT_DIR"), "/levels.rs"));
 }