path: removed pathcpy_trunc()

There was only one user of pathcpy_trunc(), which can be eliminated.

src/path.h

@@ -61,12 +61,6 @@ char *rpp2app_r(char *dst, const char *rel_path);
 /* strips extra "///" and leading "/" and trailing "/" */
 char *sanitizePathDup(const char *path);
 
-/* this is actually like strlcpy (OpenBSD), but we don't actually want to
- * blindly use it everywhere, only for paths that are OK to truncate (for
- * error reporting and such.
- * dest must be MPD_PATH_MAX bytes large (which is standard in mpd) */
-void pathcpy_trunc(char *dest, const char *src);
-
 /*
  * converts a path passed from a client into an absolute FS path.
  * paths passed by clients do NOT have file suffixes in them