Revert "8c34e50dc slowed down detruction with no DESTROY"

This reverts commit 7cc6787e9dbebdd83799d997361188ab6dfe8ead.

That commit is causing crashes on Windows for some as yet unknown rea-
son.  (See ticket #115830.)  I don’t have time to fix it before the
release of 5.17.6.

1 files changed, 0 insertions, 2 deletions

diff --git a/mro.c b/mro.c
index be2038f4e7..2d1d887fe8 100644
--- a/mro.c
+++ b/mro.c
@@ -578,7 +578,6 @@ Perl_mro_isa_changed_in(pTHX_ HV* stash)
                 revmeta->cache_gen++;
             if(revmeta->mro_nextmethod)
                 hv_clear(revmeta->mro_nextmethod);
-	    if (!SvOBJECT(revstash)) SvSTASH(revstash) = NULL;
 
 	    (void)
 	      hv_store(
@@ -1357,7 +1356,6 @@ Perl_mro_method_changed_in(pTHX_ HV *stash)
             mrometa->cache_gen++;
             if(mrometa->mro_nextmethod)
                 hv_clear(mrometa->mro_nextmethod);
-            if (!SvOBJECT(revstash)) SvSTASH(revstash) = NULL;
         }
     }