remove definitions of tti and ttb from htmlbuilder.rb
remove definitions of tti and ttb from htmlbuilder.rb

takahashim/review,murashitas/review,orangain/review,suzuki/review,orangain/review,masawada/review,kdmsnr/review,kmuto/review,takahashim/review,kmuto/review,kmuto/review,krororo/review,kuad9/review_study,masawada/review,krororo/review,krororo/review,suzuki/review,murashitas/review,kuad9/review_study