x86: dt: Correct local apic documentation in device tree bindings

Until "x86: dt: Cleanup local apic setup" we read the local apic
address from the MSR and ignored the entry in DT. Reflect this change
in the documentation.
Signed-off-by: NSebastian Andrzej Siewior <bigeasy@linutronix.de>
LKML-Reference: <1298830419-22681-1-git-send-email-bigeasy@linutronix.de>
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

Documentation/devicetree/bindings/x86/interrupt.txt

@@ -24,6 +24,3 @@ Interrupt chips
   Required property:
 
      compatible = "intel,ce4100-lapic";
-
-  This node is currently unused by Linux as the address of the local APIC
-  read from a MSR.