ldso: remove duplicate function declarations

Commit e3dec33ba (powerpc: Add TLS and NPTL support) introduced a duplicate of
_dl_add_to_slotinfo and _dl_initial_error_catch_tsd declarations.

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

ldso/include/ldso.h

@@ -96,10 +96,6 @@ extern void _dl_add_to_slotinfo (struct link_map  *l);
 extern void ** __attribute__ ((const)) _dl_initial_error_catch_tsd (void);
 #endif
 
-#ifdef USE_TLS
-void _dl_add_to_slotinfo (struct link_map  *l);
-void ** __attribute__ ((const)) _dl_initial_error_catch_tsd (void);
-#endif
 #ifdef __SUPPORT_LD_DEBUG__
 extern char *_dl_debug;
 extern char *_dl_debug_symbols;