patch 9.0.0929: build failure with tiny version

Problem:    Build failure with tiny version. (Tony Mechelynck)
Solution:   Add #ifdef.
diff --git a/src/window.c b/src/window.c
index 6816697..97cc770 100644
--- a/src/window.c
+++ b/src/window.c
@@ -3134,7 +3134,11 @@
 #endif
     }
 
-    if (trigger_scroll && scroll_dict != NULL)
+    if (trigger_scroll
+#ifdef FEAT_EVAL
+	    && scroll_dict != NULL
+#endif
+	    )
     {
 #ifdef FEAT_EVAL
 	save_v_event_T  save_v_event;