[Ada] Makefile.rtl: remove references t oVxworks RTP Cert .spec files

gcc/ada/

	* Makefile.rtl (GCC_SPEC_FILES): Remove vxworks cert files.
diff --git a/gcc/ada/Makefile.rtl b/gcc/ada/Makefile.rtl
index 09395d3..03429f6 100644
--- a/gcc/ada/Makefile.rtl
+++ b/gcc/ada/Makefile.rtl
@@ -1205,10 +1205,8 @@
     else
       GCC_SPEC_FILES+=vxworks7-rtp-base-link.spec
     endif
-    GCC_SPEC_FILES+=vxworks7-cert-rtp-link__ppcXX.spec
   else
     GCC_SPEC_FILES+=vxworks-$(ARCH_STR)-link.spec
-    GCC_SPEC_FILES+=vxworks-cert-$(ARCH_STR)-link.spec
     GCC_SPEC_FILES+=vxworks-smp-$(ARCH_STR)-link.spec
   endif
 endif
@@ -1349,10 +1347,8 @@
 
   ifeq ($(strip $(filter-out vxworks7%, $(target_os))),)
     GCC_SPEC_FILES+=vxworks7-$(X86CPU)-rtp-base-link.spec
-    GCC_SPEC_FILES+=vxworks7-cert-rtp-link.spec
   else
     GCC_SPEC_FILES+=vxworks-x86-link.spec
-    GCC_SPEC_FILES+=vxworks-cert-x86-link.spec
     GCC_SPEC_FILES+=vxworks-smp-x86-link.spec
   endif
 endif
@@ -1476,9 +1472,6 @@
       GCC_SPEC_FILES+=vxworks-smp-arm-link.spec
     endif
   endif
-  ifeq ($(strip $(filter-out vxworks7%, $(target_os))),)
-    GCC_SPEC_FILES+=vxworks7-cert-rtp-link.spec
-  endif
 endif
 
 # ARM android