patch 8.0.1580: FEAT_CURSORBIND and FEAT_SCROLLBIND are unused

Problem:    FEAT_CURSORBIND and FEAT_SCROLLBIND are unused.
Solution:   Delete them.
diff --git a/src/version.c b/src/version.c
index 5850cba..9985b4f 100644
--- a/src/version.c
+++ b/src/version.c
@@ -767,6 +767,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1580,
+/**/
     1579,
 /**/
     1578,