By default, the WPSSO Strip Schema Microdata (WPSSO SSM) add-on can remove old Schema Microdata and RDFa markup from the webpage. The settings page also allows for the optional removal of duplicate / conflicting Schema markup and meta tags from the webpage head or body sections.
WPSSO SSM filters the webpage dynamically, allowing you to activate or deactivate the add-on to enable or disable the removal of old Schema Microdata, RDFa, and duplicate meta tags. The WPSSO SSM webpage filter is very fast - generally running in under 0.003 seconds.