diff --git a/qemu/target-i386/cpu.c b/qemu/target-i386/cpu.c
index 0cf3596b..312e1b0e 100644
--- a/qemu/target-i386/cpu.c
+++ b/qemu/target-i386/cpu.c
@@ -2205,10 +2205,6 @@ void cpu_clear_apic_feature(CPUX86State *env)
 
 #endif /* !CONFIG_USER_ONLY */
 
-void x86_cpudef_setup(void)
-{
-}
-
 void cpu_x86_cpuid(CPUX86State *env, uint32_t index, uint32_t count,
                    uint32_t *eax, uint32_t *ebx,
                    uint32_t *ecx, uint32_t *edx)
diff --git a/qemu/target-i386/cpu.h b/qemu/target-i386/cpu.h
index 32fc750f..621fddd8 100644
--- a/qemu/target-i386/cpu.h
+++ b/qemu/target-i386/cpu.h
@@ -1211,7 +1211,6 @@ void x86_cpu_exec_exit(CPUState *cpu);
 
 X86CPU *cpu_x86_create(struct uc_struct *uc, const char *cpu_model, Error **errp);
 int cpu_x86_exec(struct uc_struct *uc, CPUState *cpu);
-void x86_cpudef_setup(void);
 int cpu_x86_support_mca_broadcast(CPUX86State *env);
 
 int cpu_get_pic_interrupt(CPUX86State *s);
@@ -1391,7 +1390,6 @@ CPUX86State *cpu_x86_init_user(struct uc_struct *uc, const char *cpu_model);
 #ifdef TARGET_I386
 #define cpu_exec cpu_x86_exec
 #define cpu_signal_handler cpu_x86_signal_handler
-#define cpudef_setup x86_cpudef_setup
 #endif
 
 /* MMU modes definitions */