patch 8.2.4375: ctx_imports is not used

Problem:    ctx_imports is not used.
Solution:   Delete ctx_imports.  Add missing dependency.
diff --git a/src/eval.c b/src/eval.c
index 91e9bbb..c4c403c 100644
--- a/src/eval.c
+++ b/src/eval.c
@@ -967,8 +967,7 @@
 
     if (*p == '.')
     {
-	imported_T *import = find_imported(lp->ll_name, p - lp->ll_name,
-								   TRUE, NULL);
+	imported_T *import = find_imported(lp->ll_name, p - lp->ll_name, TRUE);
 
 	if (import != NULL)
 	{