Remove old version of hdstrack

This has been replaced with hdstrack2.  Removing the old version
to avoid confusion.

Author: grahambell

dat1.h

@@ -371,9 +371,6 @@ dat1CreateStructureCell( hid_t group_id, size_t index, const char * typestr, con
 int
 hds1RegLocator(HDSLoc *locator, int *status);
 
-int
-hds1FlushFile( hid_t file_id, int *status);
-
 int
 hds1IsOpen( const char *path, int *status);