x86: Remove boot_idt assembly assignment

boot_idt is now a symbol.

Signed-off-by: Nadav Amit <namit@vmware.com>
Message-Id: <20200630094516.22983-2-namit@vmware.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
diff --git a/x86/cstart64.S b/x86/cstart64.S
index b44d0ae..fabcdbf 100644
--- a/x86/cstart64.S
+++ b/x86/cstart64.S
@@ -2,15 +2,12 @@
 #include "apic-defs.h"
 
 .globl boot_idt
-boot_idt = 0
 
 .globl idt_descr
 .globl tss_descr
 .globl gdt64_desc
 .globl online_cpus
 
-boot_idt = 0
-
 ipi_vector = 0x20
 
 max_cpus = MAX_TEST_CPUS