Remove extern crate statements (#3310)

src/platform_impl/linux/x11/ime/context.rs

@@ -86,7 +86,7 @@ extern "C" fn preedit_draw_callback(
     let chg_range =
         call_data.chg_first as usize..(call_data.chg_first + call_data.chg_length) as usize;
     if chg_range.start > client_data.text.len() || chg_range.end > client_data.text.len() {
-        warn!(
+        log::warn!(
             "invalid chg range: buffer length={}, but chg_first={} chg_lengthg={}",
             client_data.text.len(),
             call_data.chg_first,

src/platform_impl/linux/x11/ime/mod.rs

@@ -10,6 +10,10 @@ use std::sync::{
     Arc,
 };
 
+use log::debug;
+#[cfg(feature = "serde")]
+use serde::{Deserialize, Serialize};
+
 use super::{ffi, util, XConnection, XError};
 
 pub use self::context::ImeContextCreationError;

src/platform_impl/linux/x11/mod.rs

@@ -22,6 +22,7 @@ pub use self::xdisplay::{XError, XNotSupported};
 use calloop::generic::Generic;
 use calloop::EventLoop as Loop;
 use calloop::{ping::Ping, Readiness};
+use log::warn;
 
 use std::{
     cell::{Cell, RefCell},

src/platform_impl/linux/x11/util/hint.rs

@@ -1,5 +1,8 @@
 use std::sync::Arc;
 
+#[cfg(feature = "serde")]
+use serde::{Deserialize, Serialize};
+
 use super::*;
 
 #[derive(Debug)]

src/platform_impl/linux/x11/util/input.rs

@@ -45,7 +45,7 @@ impl XConnection {
             self.flush_requests()?;
             Ok(true)
         } else {
-            error!("Could not select XKB events: The XKB extension is not initialized!");
+            log::error!("Could not select XKB events: The XKB extension is not initialized!");
             Ok(false)
         }
     }

src/platform_impl/linux/x11/util/randr.rs

@@ -4,6 +4,7 @@ use super::*;
 use crate::platform_impl::platform::x11::monitor;
 use crate::{dpi::validate_scale_factor, platform_impl::platform::x11::VideoMode};
 
+use log::warn;
 use x11rb::protocol::randr::{self, ConnectionExt as _};
 
 /// Represents values of `WINIT_HIDPI_FACTOR`.

src/platform_impl/linux/x11/window.rs

@@ -7,6 +7,7 @@ use std::{
     sync::{Arc, Mutex, MutexGuard},
 };
 
+use log::{debug, info, warn};
 use x11rb::{
     connection::Connection,
     properties::{WmHints, WmHintsState, WmSizeHints, WmSizeHintsSpecification},