Remove unused portable-atomic dep

Has been unused for a long while (since the animation clock refactor).

Cargo.lock

@@ -2196,7 +2196,6 @@ dependencies = [
  "pipewire",
  "pkg-config",
  "png",
- "portable-atomic",
  "profiling",
  "proptest",
  "proptest-derive",
@@ -2829,12 +2828,6 @@ dependencies = [
  "windows-sys 0.61.2",
 ]
 
-[[package]]
-name = "portable-atomic"
-version = "1.13.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f89776e4d69bb58bc6993e99ffa1d11f228b839984854c7daeb5d37f87cbe950"
-
 [[package]]
 name = "ppv-lite86"
 version = "0.2.21"

Cargo.toml

@@ -84,7 +84,6 @@ pango = { version = "0.21.5", features = ["v1_44"] }
 pangocairo = "0.21.5"
 pipewire = { version = "0.9.2", optional = true, features = ["v0_3_33"] }
 png = "0.18.0"
-portable-atomic = { version = "1.13.0", default-features = false, features = ["float"] }
 profiling = "1.0.17"
 sd-notify = "0.4.5"
 serde.workspace = true

src/main.rs

@@ -7,6 +7,7 @@ use std::io::{self, Write};
 use std::os::fd::FromRawFd;
 use std::path::PathBuf;
 use std::process::Command;
+use std::sync::atomic::Ordering;
 use std::{env, mem};
 
 use calloop::EventLoop;
@@ -26,7 +27,6 @@ use niri::utils::spawning::{
 use niri::utils::{cause_panic, version, watcher, xwayland, IS_SYSTEMD_SERVICE};
 use niri_config::{Config, ConfigPath};
 use niri_ipc::socket::SOCKET_PATH_ENV;
-use portable_atomic::Ordering;
 use sd_notify::NotifyState;
 use smithay::reexports::wayland_server::Display;
 use tracing_subscriber::EnvFilter;