Kernel: Remove unused header includes in root kernel tree

Kernel/Lock.cpp

@@ -5,7 +5,6 @@
  */
 
 #include <AK/SourceLocation.h>
-#include <AK/TemporaryChange.h>
 #include <Kernel/Debug.h>
 #include <Kernel/KSyms.h>
 #include <Kernel/Lock.h>

Kernel/Scheduler.cpp

@@ -5,10 +5,8 @@
  */
 
 #include <AK/ScopeGuard.h>
-#include <AK/TemporaryChange.h>
 #include <AK/Time.h>
 #include <Kernel/Arch/x86/InterruptDisabler.h>
-#include <Kernel/Arch/x86/TrapFrame.h>
 #include <Kernel/Debug.h>
 #include <Kernel/Panic.h>
 #include <Kernel/PerformanceManager.h>
@@ -17,7 +15,6 @@
 #include <Kernel/Scheduler.h>
 #include <Kernel/Sections.h>
 #include <Kernel/Time/TimeManagement.h>
-#include <Kernel/TimerQueue.h>
 
 // Remove this once SMP is stable and can be enabled by default
 #define SCHEDULE_ON_ALL_PROCESSORS 0

Kernel/ThreadTracer.cpp

@@ -4,8 +4,6 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
-#include <AK/Memory.h>
-#include <AK/kmalloc.h>
 #include <Kernel/Arch/x86/RegisterState.h>
 #include <Kernel/ThreadTracer.h>