Remove Limitations and TODO, those are severely outdated and no longer true.
Remove Limitations and TODO, those are severely outdated and no
longer true.

hongbinz/rtpproxy,Vocalocity/rtpproxy-pre,Vocalocity/rtpproxy-pre,dsanders11/rtpproxy,hongbinz/rtpproxy,jevonearth/rtpproxy,synety-jdebp/rtpproxy,dsanders11/rtpproxy,synety-jdebp/rtpproxy,sippy/rtpproxy,sippy/rtpproxy,jevonearth/rtpproxy,Vocalocity/rtpproxy-pre,dsanders11/rtpproxy,hongbinz/rtpproxy,hongbinz/rtpproxy,synety-jdebp/rtpproxy,synety-jdebp/rtpproxy,jevonearth/rtpproxy,jevonearth/rtpproxy,sippy/rtpproxy,Vocalocity/rtpproxy-pre