Kernel: Move dump_backtrace() out of arch.

I discovered __builtin_frame_address()

kernel/arch/i386/Panic.cpp

@@ -1,24 +0,0 @@
-#include <kernel/Panic.h>
-
-namespace Kernel
-{
-
-	void dump_stacktrace()
-	{
-		struct stackframe
-		{
-			stackframe* ebp;
-			uint32_t eip;
-		};
-
-		stackframe* frame;
-		asm volatile("movl %%ebp, %0" : "=r"(frame));
-		BAN::Formatter::print(Serial::serial_putc, "\e[36mStack trace:\r\n");
-		while (frame)
-		{
-			BAN::Formatter::print(Serial::serial_putc, "    {}\r\n", (void*)frame->eip);
-			frame = frame->ebp;
-		}
-	}
-
-}

kernel/arch/i386/make.config

@@ -9,6 +9,5 @@ $(ARCHDIR)/boot.o		\
 $(ARCHDIR)/CPUID.o		\
 $(ARCHDIR)/IDT.o		\
 $(ARCHDIR)/MMU.o		\
-$(ARCHDIR)/Panic.o		\
 $(ARCHDIR)/VESA.o		\