x64_64: it is not necessary to call restore_critical_section in irq

Remove restore_critical_section() call from common_handler() in x86_64 interrupt
processing as it is not necessary during interrupt handling. The critical section
state is properly managed by the interrupt framework elsewhere.

Signed-off-by: hujun5 <hujun5@xiaomi.com>

arch/x86_64/src/intel64/intel64_handlers.c

@@ -115,10 +115,6 @@ static uint64_t *common_handler(int irq, uint64_t *regs)
        */
 
       *running_task = tcb;
-
-      /* Restore the cpu lock */
-
-      restore_critical_section(tcb, this_cpu());
     }
 
   /* Clear irq flag */