Remove redundant DSO_METHOD_beos declaration in dso.h. BEOS support has been

removed.
Reviewed-by: NRichard Levitte <levitte@openssl.org>

crypto/dso/dso.h

@@ -322,9 +322,6 @@ int DSO_pathbyaddr(void *addr,char *path,int sz);
  * itself or libsocket. */
 void *DSO_global_lookup(const char *name);
 
-/* If BeOS is defined, use shared images. If not, return NULL. */
-DSO_METHOD *DSO_METHOD_beos(void);
-
 /* BEGIN ERROR CODES */
 /* The following lines are auto generated by the script mkerr.pl. Any changes
  * made after this point may be overwritten when the script is next run.