style(hal): remove unused import and modify annotation

crates/eonix_hal/src/arch/riscv64/bootstrap.rs

@@ -223,7 +223,7 @@ fn setup_cpu(alloc: impl PageAlloc, hart_id: usize) {
             .set_kernel_tp(PercpuArea::get_for(cpu.cpuid()).unwrap().cast());
     }
 
-    // set current hart's mtimecmp registerAdd commentMore actions
+    // set current hart's mtimecmp register
     enable_timer_interrupt();
 }
 

crates/eonix_hal/src/arch/riscv64/cpu.rs

@@ -2,7 +2,10 @@ use super::{
     interrupt::InterruptControl,
     trap::{setup_trap, TRAP_SCRATCH},
 };
-use crate::arch::{fdt::{FdtExt, FDT}, time::set_next_timer};
+use crate::arch::{
+    fdt::{FdtExt, FDT},
+    time::set_next_timer,
+};
 use core::{arch::asm, pin::Pin, ptr::NonNull};
 use eonix_preempt::PreemptGuard;
 use eonix_sync_base::LazyLock;

crates/eonix_hal/src/arch/riscv64/trap/mod.rs

@@ -10,7 +10,6 @@ use eonix_hal_traits::{
     context::RawTaskContext,
     trap::{IrqState as IrqStateTrait, TrapReturn},
 };
-use riscv::register::sie::Sie;
 use riscv::register::sstatus::{self, Sstatus};
 use riscv::register::stvec::TrapMode;
 use riscv::register::{scause, sepc, stval};