ipipe: Revert changes to ARM arch_timer_set_cntkctl

This belongs into the ARM tree.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>

arch/arm/include/asm/arch_timer.h

@@ -106,10 +106,6 @@ static inline u32 arch_timer_get_cntkctl(void)
 
 static inline void arch_timer_set_cntkctl(u32 cntkctl)
 {
-#ifdef CONFIG_IPIPE
-	/* Enable access to user-space (may not be needed) */
-	cntkctl |= ARCH_TIMER_USR_PCT_ACCESS_EN;
-#endif
 	asm volatile("mcr p15, 0, %0, c14, c1, 0" : : "r" (cntkctl));
 }