Why are HTTP integration test excluded from test suite?

[timfox]

<fileset dir="${test.classes.dir}">
 <exclude name="**/integration/http/*" />
 <include name="${tests.param}"/>
 </fileset>

[jmesnil]

iirc, we temporarily excluded them because of a bug in netty HTTP code.
When we updated netty version which fixed it, we forgot to include them back