Bootloader: Locate the kernel's data segment and clear it.

This was a constant source of stupid bugs and I kept postponing it because
I wasn't in the mood to write assembly code. Until now! :^)

WindowServer/WSMessageLoop.cpp

@@ -12,11 +12,6 @@
 
 static WSMessageLoop* s_the;
 
-void WSMessageLoop::initialize()
-{
-    s_the = nullptr;
-}
-
 WSMessageLoop::WSMessageLoop()
 {
     if (!s_the)

WindowServer/WSMessageLoop.h

@@ -19,8 +19,6 @@ public:
 
     static WSMessageLoop& the();
 
-    static void initialize();
-
     bool running() const { return m_running; }
     Process& server_process() { return *m_server_process; }
 

WindowServer/WSScreen.cpp

@@ -7,11 +7,6 @@
 
 static WSScreen* s_the;
 
-void WSScreen::initialize()
-{
-    s_the = nullptr;
-}
-
 WSScreen& WSScreen::the()
 {
     ASSERT(s_the);

WindowServer/WSScreen.h

@@ -21,8 +21,6 @@ public:
     Size size() const { return { width(), height() }; }
     Rect rect() const { return { 0, 0, width(), height() }; }
 
-    static void initialize();
-
     Point cursor_location() const { return m_cursor_location; }
     bool left_mouse_button_pressed() const { return m_left_mouse_button_pressed; }
     bool right_mouse_button_pressed() const { return m_right_mouse_button_pressed; }

WindowServer/WSWindowManager.cpp

@@ -75,11 +75,6 @@ WSWindowManager& WSWindowManager::the()
     return *s_the;
 }
 
-void WSWindowManager::initialize()
-{
-    s_the = nullptr;
-}
-
 static const char* cursor_bitmap_inner_ascii = {
     " #          "
     " ##         "

WindowServer/WSWindowManager.h

@@ -29,8 +29,6 @@ public:
 
     void move_to_front(WSWindow&);
 
-    static void initialize();
-
     void draw_cursor();
 
     void invalidate(const WSWindow&);