revert UNALIGNED_WORD_ACCESS for GCC6

Released GCC 6.0 fixed the issue.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69291
[ruby-core:72211] [Bug #11831] [Bug #11979]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54855 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 0 insertions, 4 deletions

diff --git a/st.c b/st.c
index 9672c2e6fd..52a672d408 100644
--- a/st.c
+++ b/st.c
@@ -1377,10 +1377,6 @@ strhash(st_data_t arg)
 }
 #else
 
-#if !defined(UNALIGNED_WORD_ACCESS) && defined(__GNUC__) && __GNUC__ >= 6
-# define UNALIGNED_WORD_ACCESS 0
-#endif
-
 #ifndef UNALIGNED_WORD_ACCESS
 # if defined(__i386) || defined(__i386__) || defined(_M_IX86) || \
      defined(__x86_64) || defined(__x86_64__) || defined(_M_AMD64) || \