patch 8.1.0795: cannot build without popup menu

Problem:    Cannot build without popup menu.
Solution:   Add #ifdef

src/ex_getln.c

@@ -7268,9 +7268,11 @@ open_cmdwin(void)
     /* Don't execute autocommands while creating the window. */
     block_autocmds();
 
+#if defined(FEAT_INS_EXPAND)
     // When using completion in Insert mode with <C-R>=<C-F> one can open the
     // command line window, but we don't want the popup menu then.
     pum_undisplay();
+#endif
 
     /* don't use a new tab page */
     cmdmod.tab = 0;

src/version.c

@@ -791,6 +791,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    795,
 /**/
     794,
 /**/