retire {RDCOMServer}

retiring omega hat projects on GitHub that don't install

error message: "dependencies 'SWinRegistry', 'Ruuid' are not available for package 'RDCOMServer'"

ref #500 #503

WebTechnologies.md

@@ -624,9 +624,7 @@ Many CRAN packages interact with services facilitating sports analysis.  For a m
   `r pkg("FastRWeb")` provides some basic infrastructure for this.
   `r pkg("plumber")` allows you to create a REST API by decorating existing R source code.
   `r pkg("beakr")` provides an R version of functionality found in python Flask and JavaScript Express.js.
-- `r ohat("RDCOMServer")` provides a mechanism to export R objects as (D)COM objects in Windows.
-  It can be used along with `r github("omegahat/RDCOMClient")`,
-  which provides user-level access from R to other COM servers. (not on CRAN)
+- `r github("omegahat/RDCOMClient")` (not on CRAN) which provides user-level access from R to other COM servers.
 - `r pkg("radiant")` is Shiny-based GUI for R that runs in a browser from a server or local machine.
 - The 'Tiki' Wiki CMS/Groupware framework has an R plugin (`PluginR`) to run R code from wiki pages,
   and use data from their own collected web databases (trackers).