libwbclient: Fix s4 build failure by fixing up includes.

Sorry about this, folks.

nsswitch/libwbclient/libwbclient.h

@@ -36,7 +36,6 @@
 /* Public headers */
 
 #include "wbclient.h"
-#include "wbc_async.h"
 
 /* Private headers */
 

nsswitch/libwbclient/wbc_idmap_async.c

@@ -23,6 +23,7 @@
 
 #include "replace.h"
 #include "libwbclient.h"
+#include "wbc_async.h"
 
 struct wbc_sid_to_uid_state {
 	struct winbindd_request req;

nsswitch/libwbclient/wbc_pam_async.c

@@ -24,6 +24,7 @@
 #include "replace.h"
 #include "libwbclient.h"
 #include "../winbind_client.h"
+#include "wbc_async.h"
 
 /* FIXME: Currently this is still a copy of the same function from wbc_pam.c */
 static wbcErr wbc_create_auth_info(TALLOC_CTX *mem_ctx,

nsswitch/libwbclient/wbc_sid_async.c

@@ -24,6 +24,7 @@
 #include "replace.h"
 #include "libwbclient.h"
 #include "../winbind_client.h"
+#include "wbc_async.h"
 
 struct wbc_lookup_name_state {
 	struct winbindd_request req;

nsswitch/libwbclient/wbc_util_async.c

@@ -23,6 +23,7 @@
 
 #include "replace.h"
 #include "libwbclient.h"
+#include "wbc_async.h"
 
 struct wbc_ping_state {
 	struct winbindd_request req;

nsswitch/libwbclient/wbclient.c

@@ -23,8 +23,6 @@
 /* Required Headers */
 
 #include "replace.h"
-#include "talloc.h"
-#include "tevent.h"
 #include "libwbclient.h"
 
 /* From wb_common.c */