Make 'libgomp/target.c:gomp_unmap_tgt' 'static' again

This got changed to 'attribute_hidden' in r271128, but it's not actually used
outside of 'libgomp/target.c'.

	libgomp/
	* target.c (gomp_unmap_tgt): Make it 'static'.
	* libgomp.h (gomp_unmap_tgt): Remove.

From-SVN: r279529

libgomp/ChangeLog

+2019-12-18  Thomas Schwinge  <thomas@codesourcery.com>
+
+	* target.c (gomp_unmap_tgt): Make it 'static'.
+	* libgomp.h (gomp_unmap_tgt): Remove.
+
 2019-12-18  Tobias Burnus  <tobias@codesourcery.com>
 
 	PR middle-end/86416

libgomp/libgomp.h

@@ -1157,7 +1157,6 @@ extern struct target_mem_desc *gomp_map_vars_async (struct gomp_device_descr *,
 						    size_t, void **, void **,
 						    size_t *, void *, bool,
 						    enum gomp_map_vars_kind);
-extern void gomp_unmap_tgt (struct target_mem_desc *);
 extern void gomp_unmap_vars (struct target_mem_desc *, bool);
 extern void gomp_unmap_vars_async (struct target_mem_desc *, bool,
 				   struct goacc_asyncqueue *);

libgomp/target.c

@@ -1105,7 +1105,7 @@ gomp_map_vars_async (struct gomp_device_descr *devicep,
 				 sizes, kinds, short_mapkind, pragma_kind);
 }
 
-attribute_hidden void
+static void
 gomp_unmap_tgt (struct target_mem_desc *tgt)
 {
   /* Deallocate on target the tgt->tgt_start .. tgt->tgt_end region.  */