LibCore: Remove main event loop

The main event loop functionality was used in just two places where the
alternative is a bit simpler. Remove it in favor of referencing the
event loop directly, or just invoking `EventLoop::current()`.

Note that we don't need locking in the constructor since we're now only
modifying a thread-local `Vector`. We also don't need locking in the
old call sites to `::with_main_locked()` since we already lock the
event loop in the subsequent `::post_event()` invocation.

1 files changed, 1 insertions, 1 deletions

diff --git a/Userland/Applications/SystemMonitor/ThreadStackWidget.cpp b/Userland/Applications/SystemMonitor/ThreadStackWidget.cpp
index 998cb50868..3c025499aa 100644
--- a/Userland/Applications/SystemMonitor/ThreadStackWidget.cpp
+++ b/Userland/Applications/SystemMonitor/ThreadStackWidget.cpp
@@ -123,7 +123,7 @@ void ThreadStackWidget::refresh()
         [weak_this = make_weak_ptr()](auto result) {
             if (!weak_this)
                 return;
-            Core::EventLoop::with_main_locked([&](auto* main_event_loop) { main_event_loop->post_event(const_cast<Core::Object&>(*weak_this), make<CompletionEvent>(move(result))); });
+            Core::EventLoop::current().post_event(const_cast<Core::Object&>(*weak_this), make<CompletionEvent>(move(result)));
         });
 }