.travis.yml: delete duplicated --disable-install-doc [ci skip]
The flag was already specified inside of before_script
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65165 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Added by shyouhei (Shyouhei Urabe) about 7 years ago
.travis.yml: delete duplicated --disable-install-doc [ci skip]
The flag was already specified inside of before_script
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65165 b2dd03c8-39d4-4d8f-98ff-823fe69b080e