--- a/src/upmpdutils.hxx
+++ b/src/upmpdutils.hxx
@@ -24,13 +24,6 @@
 #include <vector>                       // for vector
 
 class UpSong;
-
-/** Read protocol info file. This contains the connection manager protocol info data
- *
- * We strip white-space from beginning/ends of lines, and allow
- * #-started comments (on a line alone only, comments after data not allowed).
- */
-bool read_protocolinfo(const std::string& fn, std::string& out);
 
 /**
  * Read file into string.