refactor

kernel/arch/x86_64/include/bits/percpu.h

@@ -6,12 +6,6 @@
 #include <x86_64/gdt.h>
 #include <x86_64/tss.h>
 
-static inline struct percpu* arch_percpu_get() {
-    struct percpu* result;
-    asm volatile("mov %0, gs:0" : "=r"(result)::"memory");
-    return result;
-}
-
 struct arch_percpu {
     struct gdt gdt;
     struct tss tss;
@@ -22,6 +16,3 @@ struct arch_percpu {
     void (*fpu_restore)(const void*);
     bool can_smap;
 };
-
-void arch_percpu_bsp_init();
-void arch_percpu_init();