patch 9.0.1526: condition is always true

Problem:    Condition is always true.
Solution:   Remove unnecessary condition. (closes #12359)
diff --git a/src/version.c b/src/version.c
index e2d91d8..ce64da4 100644
--- a/src/version.c
+++ b/src/version.c
@@ -696,6 +696,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1526,
+/**/
     1525,
 /**/
     1524,