patch 9.0.1452: code using EVAL_CONSTANT is dead, it is never set

Problem:    Code using EVAL_CONSTANT is dead, it is never set.
Solution:   Remove EVAL_CONSTANT. (closes #12252)
diff --git a/src/version.c b/src/version.c
index e55ff4a..6bbf3d0 100644
--- a/src/version.c
+++ b/src/version.c
@@ -696,6 +696,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1452,
+/**/
     1451,
 /**/
     1450,