patch 8.2.2637: prop_remove() causes a redraw even when nothing changed

Problem:    prop_remove() causes a redraw even when nothing changed.
Solution:   Only redraw if a property was removed.
diff --git a/src/version.c b/src/version.c
index bdc23a4..399539d 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2637,
+/**/
     2636,
 /**/
     2635,