Cleaned unnecessary code blocks from tw_config.py
Cleaned unnecessary code blocks from tw_config.py

Signed-off-by: Waqas Riaz <aea5bca4236259de841a1b123848d5d405ae5bd6@gmail.com>

twister2016/twister,twister2016/twister,twister2016/twister,twister2016/twister