cubicweb-bootstrap #3489101 clean Search box html [validation pending]

remove the commented code on the Search box

prioritynormal
typebug
done in0.4.1
load0.100
load left0.000
closed by#2634b5b65208 [hml] remove useless code on SearchBox (closes #3489101)
patch[hml] remove useless code on SearchBox (closes #3489101) [applied]