Userland: Remove superfluous headers

Userland has no reason to access 'kmalloc'.

Userland/Applications/Debugger/main.cpp

@@ -29,7 +29,6 @@
 #include <AK/Demangle.h>
 #include <AK/LogStream.h>
 #include <AK/StringBuilder.h>
-#include <AK/kmalloc.h>
 #include <LibC/sys/arch/i386/regs.h>
 #include <LibCore/ArgsParser.h>
 #include <LibCore/File.h>

Userland/Libraries/LibC/stdio.cpp

@@ -29,7 +29,6 @@
 #include <AK/PrintfImplementation.h>
 #include <AK/ScopedValueRollback.h>
 #include <AK/StdLibExtras.h>
-#include <AK/kmalloc.h>
 #include <assert.h>
 #include <errno.h>
 #include <fcntl.h>

Userland/Libraries/LibGfx/BitmapFont.cpp

@@ -32,7 +32,6 @@
 #include <AK/Utf32View.h>
 #include <AK/Utf8View.h>
 #include <AK/Vector.h>
-#include <AK/kmalloc.h>
 #include <LibCore/FileStream.h>
 #include <LibGfx/FontDatabase.h>
 #include <stdio.h>

Userland/Libraries/LibJS/Heap/HeapBlock.cpp

@@ -26,7 +26,6 @@
 
 #include <AK/Assertions.h>
 #include <AK/NonnullOwnPtr.h>
-#include <AK/kmalloc.h>
 #include <LibJS/Heap/HeapBlock.h>
 #include <stdio.h>
 #include <sys/mman.h>

Userland/Utilities/chmod.cpp

@@ -26,7 +26,6 @@
 
 #include <AK/Optional.h>
 #include <AK/StdLibExtras.h>
-#include <AK/kmalloc.h>
 #include <stdio.h>
 #include <string.h>
 #include <sys/stat.h>

Userland/Utilities/functrace.cpp

@@ -31,7 +31,6 @@
 #include <AK/LogStream.h>
 #include <AK/NonnullOwnPtr.h>
 #include <AK/StringBuilder.h>
-#include <AK/kmalloc.h>
 #include <LibC/sys/arch/i386/regs.h>
 #include <LibCore/ArgsParser.h>
 #include <LibCore/File.h>