Add unit test for BaseInputFilter::remove()
Add unit test for BaseInputFilter::remove()

Blinden/zend-inputfilter,akomm/zend-inputfilter,MadCat34/zend-inputfilter,stefanotorresi/zend-inputfilter,weierophinney/zend-inputfilter,zf2timo/zend-inputfilter,Maks3w/zend-inputfilter,zendframework/zend-inputfilter,akrabat/zend-inputfilter