LibCore: Remove some unnecessary includes from EventLoop.h

Author: https://github.com/awesomekling
Commit: https://github.com/SerenityOS/serenity/commit/8e7d7b0ec2
Pull-request: https://github.com/SerenityOS/serenity/pull/18493
Reviewed-by: https://github.com/FireFox317

Userland/Applications/Piano/AudioPlayerLoop.h

@@ -15,6 +15,7 @@
 #include <LibCore/Event.h>
 #include <LibCore/Object.h>
 #include <LibDSP/Music.h>
+#include <LibThreading/MutexProtected.h>
 #include <LibThreading/Thread.h>
 
 class TrackManager;

Userland/Libraries/LibCore/EventLoop.h

@@ -10,18 +10,11 @@
 
 #include <AK/Forward.h>
 #include <AK/Function.h>
-#include <AK/HashMap.h>
 #include <AK/Noncopyable.h>
 #include <AK/NonnullOwnPtr.h>
-#include <AK/NonnullRefPtr.h>
 #include <AK/Time.h>
-#include <AK/Vector.h>
-#include <AK/WeakPtr.h>
 #include <LibCore/Event.h>
 #include <LibCore/Forward.h>
-#include <LibThreading/MutexProtected.h>
-#include <sys/time.h>
-#include <sys/types.h>
 
 namespace Core {
 

Userland/Libraries/LibIPC/Connection.cpp

@@ -8,6 +8,7 @@
 #include <LibCore/System.h>
 #include <LibIPC/Connection.h>
 #include <LibIPC/Stub.h>
+#include <sched.h>
 #include <sys/select.h>
 
 namespace IPC {