wayland-util: do not export the wl_map_* API

Used only internally and explicitly marked as such with commit
cf04b0a18f2 ("Move private definitions and prototypes to new
zwayland-private.h")

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
diff --git a/src/wayland-util.c b/src/wayland-util.c
index 077fec7..cab7fc5 100644
--- a/src/wayland-util.c
+++ b/src/wayland-util.c
@@ -177,21 +177,21 @@
 #define map_entry_get_data(entry) ((void *)((entry).next & ~(uintptr_t)0x3))
 #define map_entry_get_flags(entry) (((entry).next >> 1) & 0x1)
 
-WL_EXPORT void
+void
 wl_map_init(struct wl_map *map, uint32_t side)
 {
 	memset(map, 0, sizeof *map);
 	map->side = side;
 }
 
-WL_EXPORT void
+void
 wl_map_release(struct wl_map *map)
 {
 	wl_array_release(&map->client_entries);
 	wl_array_release(&map->server_entries);
 }
 
-WL_EXPORT uint32_t
+uint32_t
 wl_map_insert_new(struct wl_map *map, uint32_t flags, void *data)
 {
 	union map_entry *start, *entry;
@@ -223,7 +223,7 @@
 	return (entry - start) + base;
 }
 
-WL_EXPORT int
+int
 wl_map_insert_at(struct wl_map *map, uint32_t flags, uint32_t i, void *data)
 {
 	union map_entry *start;
@@ -251,7 +251,7 @@
 	return 0;
 }
 
-WL_EXPORT int
+int
 wl_map_reserve_new(struct wl_map *map, uint32_t i)
 {
 	union map_entry *start;
@@ -290,7 +290,7 @@
 	return 0;
 }
 
-WL_EXPORT void
+void
 wl_map_remove(struct wl_map *map, uint32_t i)
 {
 	union map_entry *start;
@@ -314,7 +314,7 @@
 	map->free_list = (i << 1) | 1;
 }
 
-WL_EXPORT void *
+void *
 wl_map_lookup(struct wl_map *map, uint32_t i)
 {
 	union map_entry *start;
@@ -337,7 +337,7 @@
 	return NULL;
 }
 
-WL_EXPORT uint32_t
+uint32_t
 wl_map_lookup_flags(struct wl_map *map, uint32_t i)
 {
 	union map_entry *start;
@@ -379,7 +379,7 @@
 	return ret;
 }
 
-WL_EXPORT void
+void
 wl_map_for_each(struct wl_map *map, wl_iterator_func_t func, void *data)
 {
 	enum wl_iterator_result ret;