diff --git a/src/runtime/c/gu/seq.h b/src/runtime/c/gu/seq.h
index 25af2b068..a555f0bad 100644
--- a/src/runtime/c/gu/seq.h
+++ b/src/runtime/c/gu/seq.h
@@ -185,37 +185,3 @@ GuOut*
 gu_buf_out(GuBuf* buf, GuPool* pool);
 
 #endif
-
-
-#if defined(GU_TYPE_H_) && !defined(GU_SEQ_H_TYPE_)
-#define GU_SEQ_H_TYPE_
-
-extern GU_DECLARE_KIND(GuSeq);
-extern GU_DECLARE_KIND(GuBuf);
-
-struct GuSeqType {
-	GuType_GuOpaque opaque_base;
-	GuType* elem_type;
-};
-
-typedef const struct GuSeqType GuSeqType, GuType_GuSeq;
-
-#define GU_TYPE_INIT_GuSeq(k_, t_, elem_type_) {	   \
-	.opaque_base = GU_TYPE_INIT_GuOpaque(k_, t_, _), \
-	.elem_type = elem_type_,		   	\
-}
-
-typedef struct GuBufType GuBufType, GuType_GuBuf;
-
-struct GuBufType {
-	GuType_abstract abstract_base;
-	GuType* elem_type;
-};
-
-#define GU_TYPE_INIT_GuBuf(KIND, BUF_T, ELEM_T) { \
-	.abstract_base = GU_TYPE_INIT_abstract(KIND, BUF_T, _), \
-	.elem_type = ELEM_T \
-}
-
-#endif 
-