rose_build_anchored: remove unused forward decls

diff --git a/src/rose/rose_build_anchored.h b/src/rose/rose_build_anchored.h
index 579b26d720657639318d331be16f07ef839982c7..ef06fcbbed0159654fd6753a6e7c523930195ce1 100644 (file)
--- a/src/rose/rose_build_anchored.h
+++ b/src/rose/rose_build_anchored.h
@@ -39,13 +39,10 @@
 #include <set>
 
 struct anchored_matcher_info;
-struct RoseEngine;
 
 namespace ue2 {
 
-class NGHolder;
 class RoseBuildImpl;
-struct Grey;
 struct raw_dfa;
 
 /**