Remove cfg(not(windows)) from interrupt module

This is no longer required and was already removed from the post in commit 992b958414.

src/interrupts.rs

@@ -1,9 +1,3 @@
-// The x86-interrupt calling convention leads to the following LLVM error
-// when compiled for a Windows target: "offset is not a multiple of 16". This
-// happens for example when running `cargo test` on Windows. To avoid this
-// problem we skip compilation of this module on Windows.
-#![cfg(not(windows))]
-
 use crate::println;
 use lazy_static::lazy_static;
 use x86_64::structures::idt::{InterruptDescriptorTable, InterruptStackFrame};