ole32: Make apartment_addref() static.

dlls/ole32/compobj.c

@@ -312,7 +312,7 @@ static void COMPOBJ_DllList_Free(void)
  * Manage apartments.
  */
 
-DWORD apartment_addref(struct apartment *apt)
+static DWORD apartment_addref(struct apartment *apt)
 {
     DWORD refs = InterlockedIncrement(&apt->refs);
     TRACE("%s: before = %d\n", wine_dbgstr_longlong(apt->oxid), refs - 1);

dlls/ole32/compobj_private.h

@@ -252,7 +252,6 @@ void OLEDD_UnInitialize(void);
 
 APARTMENT *apartment_findfromoxid(OXID oxid, BOOL ref);
 APARTMENT *apartment_findfromtid(DWORD tid);
-DWORD apartment_addref(struct apartment *apt);
 DWORD apartment_release(struct apartment *apt);
 HRESULT apartment_disconnectproxies(struct apartment *apt);
 void apartment_disconnectobject(struct apartment *apt, void *object);