Remove Substitution referencing to nonexistent $1 field

This substitution `input${1/(\w+)/\u\1/g}` was throwing an error and consequentially shutdown Sublime as referenced in Issue #24 (I'm using SBT2x32, Win7, x64) because there is no $1 field to substitute. It would work if for example we put: `<label ${1} for="input${1/(\w+)/\u\1/g}" ${2:class="col-sm-2"}>${3}</label>`.  The same goes to form/bs3-input-label.sublime-snippet