remove unused $typeFormats propery at Zend/Code/Generator/DocBlock/Tag.php
Merge branch 'hotfix/4920'

Close #4920
Merge pull request #4922 from samsonasik/fix/unusedproperty

remove unused $typeFormats property at Zend/Code/Generator/DocBlock/Tag.php
Merge branch 'hotfix/4922' into develop

Forward port #4922