kbd: move _XkbWantsDetectableAutoRepeat() macro into dix/events.c

That's the only place where it is used, so no need to keep it
in a public header.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1462>

dix/events.c

@@ -146,6 +146,9 @@ Equipment Corporation.
 #include "enterleave.h"
 #include "mi.h"
 
+#define _XkbWantsDetectableAutoRepeat(c) \
+        ((c)->xkbClientFlags&XkbPCF_DetectableAutoRepeatMask)
+
 /* Extension events type numbering starts at EXTENSION_EVENT_BASE.  */
 #define NoSuchEvent 0x80000000  /* so doesn't match NoEventMask */
 #define StructureAndSubMask ( StructureNotifyMask | SubstructureNotifyMask )

include/xkbsrv.h

@@ -232,9 +232,6 @@ typedef struct _XkbSrvLedInfo {
 #define _XkbClientInitialized           (1<<7)
 #define _XkbClientIsAncient             (1<<6)
 
-#define	_XkbWantsDetectableAutoRepeat(c)\
-	((c)->xkbClientFlags&XkbPCF_DetectableAutoRepeatMask)
-
 /*
  * Settings for flags field
  */