chore: general cleanup in code (removed unused includes and cosmetic stuff

Kernel/Source/Arch/DTB.c

@@ -1,6 +1,5 @@
 #include <Arch/DTB.h>
 #include <OS/Panic.h>
-#include <OS/Log.h>
 #include <Lib/Bytes.h>
 #include <Lib/Align.h>
 #include <Lib/String.h>

Kernel/Source/Arch/Exceptions.c

@@ -1,7 +1,5 @@
 #include <Arch/Exceptions.h>
-#include <Arch/CPU.h>
 #include <Arch/GIC.h>
-#include <IO/Serial.h>
 #include <OS/Panic.h>
 
 Address ExceptionsHandler(ExceptionsContext* frame, ExceptionsType type) {