gpui: Remove ExitProcess shutdown workaround (#61219)

The issue with aws-lc that necessitated this workaround has been fixed
upstream: https://github.com/aws/aws-lc/issues/3197.

Release Notes:

- N/A

Cargo.lock

@@ -1559,9 +1559,9 @@ dependencies = [
 
 [[package]]
 name = "aws-lc-rs"
-version = "1.16.3"
+version = "1.17.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0ec6fb3fe69024a75fa7e1bfb48aa6cf59706a101658ea01bfd33b2b248a038f"
+checksum = "4342d8937fc7e5dd9b1c60292261c0670c882a2cd1719cfc11b1af41731e32ad"
 dependencies = [
  "aws-lc-sys",
  "untrusted 0.7.1",
@@ -1570,14 +1570,15 @@ dependencies = [
 
 [[package]]
 name = "aws-lc-sys"
-version = "0.40.0"
+version = "0.42.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f50037ee5e1e41e7b8f9d161680a725bd1626cb6f8c7e901f91f942850852fe7"
+checksum = "6d9ceb1da931507a12f4fccea479dccd00da1943e1b4ae72d8e502d707361444"
 dependencies = [
  "cc",
  "cmake",
  "dunce",
  "fs_extra",
+ "pkg-config",
 ]
 
 [[package]]

crates/gpui_windows/src/platform.rs

@@ -423,17 +423,6 @@ impl Platform for WindowsPlatform {
 
         self.inner
             .with_callback(|callbacks| &callbacks.quit, |callback| callback());
-
-        // Bypass the CRT exit logic, which runs atexit handlers before calling ExitProcess.
-        // aws-lc registers an atexit handler that intentionally acquires a lock without releasing it.
-        // aws-lc also has thread_local objects which acquire this lock in their destructor.
-        // Destructors for thread_locals run under the loader lock, so there is a race condition
-        // where, if a thread exits after atexit handlers have run, the TLS destructors will block
-        // indefinitely on this lock while holding the loader lock. Since ExitProcess also requires
-        // the loader lock, process teardown will deadlock.
-        unsafe {
-            windows::Win32::System::Threading::ExitProcess(0);
-        }
     }
 
     fn quit(&self) {