Revert "Disable thread_local for i686 host"
Revert "Disable thread_local for i686 host"

This reverts commit 209d405e593c522b2117be8eb95cb676a4ae38f5.

qtumproject/qtum,qtumproject/qtum,qtumproject/qtum,qtumproject/qtum,qtumproject/qtum,qtumproject/qtum,qtumproject/qtum