Kernel: Remove old ‘main id register accessorʼ for Aarch64

Kernel/Arch/aarch64/MainIdRegister.cpp

@@ -1,19 +0,0 @@
-/*
- * Copyright (c) 2021, Nico Weber <thakis@chromium.org>
- *
- * SPDX-License-Identifier: BSD-2-Clause
- */
-
-#include <Kernel/Arch/aarch64/MainIdRegister.h>
-
-namespace Kernel {
-
-MainIdRegister::MainIdRegister()
-{
-    unsigned int mrs;
-    asm volatile("mrs %x0, MIDR_EL1"
-                 : "=r"(mrs));
-    m_value = mrs;
-}
-
-}

Kernel/Arch/aarch64/MainIdRegister.h

@@ -1,36 +0,0 @@
-/*
- * Copyright (c) 2021, Nico Weber <thakis@chromium.org>
- *
- * SPDX-License-Identifier: BSD-2-Clause
- */
-
-#pragma once
-
-namespace Kernel {
-
-class MainIdRegister {
-public:
-    MainIdRegister();
-
-    enum Implementer {
-        ArmLimited = 0x41,
-    };
-    unsigned implementer() const { return (m_value >> 24) & 0xFF; }
-    unsigned variant() const { return (m_value >> 20) & 0xF; }
-    unsigned architecture() const { return (m_value >> 16) & 0xF; }
-
-    enum PartNum {
-        RaspberryPi1 = 0xB76,
-        RaspberryPi2 = 0xC07,
-        RaspberryPi3 = 0xD03,
-        RaspberryPi4 = 0xD08,
-    };
-    unsigned part_num() const { return (m_value >> 4) & 0xFFF; }
-
-    unsigned revision() const { return m_value & 0xF; }
-
-private:
-    unsigned int m_value;
-};
-
-}

Kernel/CMakeLists.txt

@@ -460,7 +460,6 @@ elseif("${SERENITY_ARCH}" STREQUAL "aarch64")
         Arch/aarch64/InterruptManagement.cpp
         Arch/aarch64/Interrupts.cpp
         Arch/aarch64/kprintf.cpp
-        Arch/aarch64/MainIdRegister.cpp
         Arch/aarch64/PageDirectory.cpp
         Arch/aarch64/Panic.cpp
         Arch/aarch64/Processor.cpp