cpu: x86: remove obsolete dINT/eINT

cpu/x86/include/cpu.h

@@ -50,22 +50,6 @@ extern "C" {
 #define ARCH_HAS_ATOMIC_COMPARE_AND_SWAP 1
 /** @} */
 
-/**
- * @brief Disable interrupts
- */
-static inline void __attribute__((always_inline)) dINT(void)
-{
-    asm volatile ("cli");
-}
-
-/**
- * @brief Enable interrupts
- */
-static inline void __attribute__((always_inline)) eINT(void)
-{
-    asm volatile ("sti");
-}
-
 /**
  * @brief   Disable interrupts and halt forever.
  *

cpu/x86/x86_threading.c

@@ -142,7 +142,7 @@ void isr_cpu_switch_context_exit(void)
 
 void cpu_switch_context_exit(void)
 {
-    dINT();
+    disableIRQ();
 
     if (!x86_in_isr) {
         x86_in_isr = true;
@@ -206,7 +206,7 @@ static void fpu_used_interrupt(uint8_t intr_num, struct x86_pushad *orig_ctx, un
 
 static void x86_thread_exit(void)
 {
-    dINT();
+    disableIRQ();
     if (fpu_owner == sched_active_pid) {
         fpu_owner = KERNEL_PID_UNDEF;
     }