patch 9.0.0268: build error without the +eval feature

Problem:    Build error without the +eval feature.
Solution:   Remove #ifdef.
diff --git a/src/version.c b/src/version.c
index b5cdfdf..022b719 100644
--- a/src/version.c
+++ b/src/version.c
@@ -728,6 +728,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    268,
+/**/
     267,
 /**/
     266,