Remove test code that names a thread from its parent.
Remove test code that names a thread from its parent.

google/UIforETW,ariccio/UIforETW,google/UIforETW,ariccio/UIforETW,google/UIforETW,mwinterb/UIforETW,mwinterb/UIforETW,MikeMarcin/UIforETW,u-engine/UIforETW,MikeMarcin/UIforETW,OSVR/UIforETW,google/UIforETW,modulexcite/UIforETW,u-engine/UIforETW,modulexcite/UIforETW,modulexcite/UIforETW,OSVR/UIforETW,u-engine/UIforETW,ariccio/UIforETW,MikeMarcin/UIforETW,ariccio/UIforETW,mwinterb/UIforETW,OSVR/UIforETW