random: Remove historical doc

This is about porting which happened over 20 years ago.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/9476>

subprojects/gst-plugins-bad/docs/random/PORTED_09

@@ -1,27 +0,0 @@
-When porting a plugin start with 0.8 CVS head, not the old code in this module. There are many bugfixes which have gone into 0.8 which you want to keep.
-
-List of ported plugins (update when you commit a ported plugin):
-libmms      (alima)
-wavpack     (alima)
-musepack    (alima)
-ivorbis     (alima)
-gsmdec      (alima)
-sdl         (alima)
-speed       (fcarvalho)
-gsmenc      (fcarvalho)
-faac        (fcarvalho)
-wavenc      (fcarvalho)
-effectv     (wim)
-mad	    (wim)
-videofilter (wim)
-aalib	    (wim)
-libcaca	    (zeeshan)
-law	    (wim)
-shout2      (zaheer) - not fully tested
-esdsink     (arwed)
-
-osssink is partially done in the threaded branch (wim)
-
-- Remember that some plugins are already ported and now in the gst-plugins-base module.
-
-When you have ported a plugin remember to copy the relevant parts from configure.ac.orig into configure.ac and re-enable it in the Makefile.am files.

subprojects/gst-plugins-ugly/docs/random/PORTED_09

@@ -1,17 +0,0 @@
-When porting a plugin start with 0.8 CVS head, not the old code in this module. There are many bugfixes which have gone into 0.8 which you want to keep.
-
-List of ported plugins (update when you commit a ported plugin):
-effectv (wim)
-mad	(wim)
-videofilter (wim)
-aalib	(wim)
-libcaca	(zeeshan)
-law	(wim)
-shout2  (zaheer) - not fully tested
-esdsink (arwed)
-
-osssink is partially done in the threaded branch (wim)
-
-- Remember that some plugins are already ported and now in the gst-plugins-base module.
-
-When you have ported a plugin remember to copy the relevant parts from configure.ac.orig into configure.ac and re-enable it in the Makefile.am files.