s0minutes: minutes-m4rkup is dead, remove notice from documentation

Signed-off-by: Roland Hieber <rohieb@rohieb.name>

s0minutes.dtx

@@ -58,8 +58,6 @@
 %
 % \section{Introduction}
 % This document class can be used to typeset meeting minutes in the Stratum~0 Corporate Identity.
-% The macros correspond to version \Todo{FIX VERSION}of the
-% \href{https://github.com/rohieb/minutes-m4rkup}{\textsf{minutes-m4rkup}} specification.
 %
 % \section{Package Options}
 % This class extends the \textsf{s0artcl} class, and knows every option that \textsf{s0artcl}