diff --git a/librz/util/sdb/src/buffer.h b/librz/util/sdb/src/buffer.h
index 83e1d6c7fae..9156b31f8c3 100644
--- a/librz/util/sdb/src/buffer.h
+++ b/librz/util/sdb/src/buffer.h
@@ -20,46 +20,11 @@ typedef struct buffer {
 	BufferOp op;
 } buffer;
 
-#define BUFFER_INIT(op, fd, buf, len) \
-	{ (buf), 0, (len), (fd), (op) }
-#define BUFFER_INSIZE  8192
-#define BUFFER_OUTSIZE 8192
-
 extern void buffer_init(buffer *, BufferOp, int, char *, unsigned int);
-
 extern int buffer_flush(buffer *);
-extern int buffer_put(buffer *, const char *, unsigned int);
 extern int buffer_putalign(buffer *, const char *, unsigned int);
 extern int buffer_putflush(buffer *, const char *, unsigned int);
 
-#define buffer_PUTC(s, c) \
-	(((s)->n != (s)->p) \
-			? ((s)->x[(s)->p++] = (c), 0) \
-			: buffer_put((s), &(c), 1))
-
-extern int buffer_get(buffer *, char *, unsigned int);
-extern int buffer_bget(buffer *, char *, unsigned int);
-extern int buffer_feed(buffer *);
-
-extern char *buffer_peek(buffer *);
-extern void buffer_seek(buffer *, unsigned int);
-
-#define buffer_PEEK(s)      ((s)->x + (s)->n)
-#define buffer_SEEK(s, len) (((s)->p -= (len)), ((s)->n += (len)))
-
-#define buffer_GETC(s, c) \
-	(((s)->p > 0) \
-			? (*(c) = (s)->x[(s)->n], buffer_SEEK((s), 1), 1) \
-			: buffer_get((s), (c), 1))
-
-extern int buffer_copy(buffer *, buffer *);
-
-extern buffer *buffer_0;
-extern buffer *buffer_0small;
-extern buffer *buffer_1;
-extern buffer *buffer_1small;
-extern buffer *buffer_2;
-
 #ifdef __cplusplus
 }
 #endif