docs/gst/gstreamer-sections.txt: remove double entries from the docs

docs/gst/gstreamer-sections.txt: remove double entries from the docs

Original commit message from CVS:

* docs/gst/gstreamer-sections.txt:
remove double entries from the docs
* gst/gst_private.h:
* gst/gstinfo.c: (_gst_debug_init):
remove the THREAD debug category
* gst/Makefile.am:
* gst/gstqueue.c:
* gst/gstqueue.h:
* docs/gst/gstreamer.types:
* plugins/elements/gstqueue.c: (gst_queue_get_type),
(gst_queue_init), (gst_queue_finalize), (gst_queue_change_state):
completely move queue and fix up debugging categories