Input: Remove modifierKeyMap

Since modifierKeyMap is generated from modifierMap, just remove it, and
only generate it when we need to send the modifier map to the client.

Signed-off-by: Daniel Stone <daniel@fooishbar.org>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>

include/inputstr.h

@@ -137,11 +137,9 @@ typedef struct _GrabRec {
 typedef struct _KeyClassRec {
     CARD8		down[DOWN_LENGTH];
     CARD8		postdown[DOWN_LENGTH];
-    KeyCode 		*modifierKeyMap;
     KeySymsRec		curKeySyms;
     int			modifierKeyCount[8];
     CARD8		modifierMap[MAP_LENGTH];
-    CARD8		maxKeysPerModifier;
     struct _XkbSrvInfo *xkbInfo;
 } KeyClassRec, *KeyClassPtr;