re.c (rb_reg_regcomp): remove volatile
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44929 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
re.c (rb_reg_regcomp): remove volatile
Unnecessary since r13261
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44929 b2dd03c8-39d4-4d8f-98ff-823fe69b080e