patch 9.0.0326: some changes for cmdheight=0 are not needed

Problem:    Some changes for cmdheight=0 are not needed.
Solution:   Revert resize behavior if height is greater than the available
            space. (Shougo Matsushita, closes #11008)
diff --git a/src/version.c b/src/version.c
index 5e1d931..505fe4f 100644
--- a/src/version.c
+++ b/src/version.c
@@ -708,6 +708,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    326,
+/**/
     325,
 /**/
     324,