[core][mod_sofia] remove ZRTP (deemed obsolete).

[unit-tests][build-system][docs] remove references to ZRTP.

debian/copyright

@@ -1709,27 +1709,6 @@ License: LGPL-2.1
 Files: libs/broadvoice/autogen.sh
 License: GPL-2
 
-Files: libs/libzrtp/*
-Copyright: 2006-2012 Philip R. Zimmermann.
- 1993-2005 Colin Plumb
- 1998-2006, Dr Brian Gladman, Worcester, UK.
- 2002, Bryce "Zooko" Wilcox-O'Hearn
- 2010 Soft Industry
-License: AGPL-3 or MPL-1.1
-
-Files: libs/libzrtp/test/cmockery/cmockery.c
-Copyright: 2008 Google Inc
-License: Apache-2.0
-
-Files: libs/libzrtp/third_party/bnlib/legal.c
- libs/libzrtp/third_party/bnlib/*
-Copyright: 1993-2005 Colin Plumb
-License: GPL-2 or GPL-3 or MPL-1.1
-
-Files: libs/libzrtp/third_party/bnlib/test/md5.c
-Copyright: 1995 Abandoned Colin Plumb
-License: public-domain
-
 Files: libs/win32/sqlite/sqlite3.[ch]
  libs/win32/sqlite/parse.c
 Copyright: 2006 Abandoned D. Richard Hipp <drh@hwaci.com>

debian/license-reconcile.yml

@@ -23,11 +23,6 @@ Rules:
   -
    Glob: libs/srtp/update.sh
    Copyright: Ingate Systems AB
-  -
-   Glob: libs/libzrtp/third_party/bnlib/test/md5.c
-   Matches: This\scode\sis\sin\sthe\spublic\sdomain;\sdo\swith\sit\swhat\syou\swish.
-   Copyright: 1995 Abandoned Colin Plumb
-   License: public-domain
   -
    Glob: src/g711.c
    Matches: Copyright\s\(C\)\s2006\sSteve\sUnderwood
@@ -56,28 +51,6 @@ Rules:
    Glob: src/include/switch_cpp.h
    Matches: Author[:]\sYossi\sNeiman\s<freeswitch@cartissolutions.com>,\s\(C\)\s2007////\sCopyright[:]
    Copyright: 2007 Yossi Neiman <freeswitch@cartissolutions.com>
-  -
-   Glob: libs/libzrtp/*
-   Matches: For\slicensing\sand\sother\slegal\sdetails,\ssee\sthe\sfile\szrtp_legal.c.
-   License: AGPL-3 or MPL-1.1
-  -
-   Glob: libs/libzrtp/third_party/bnlib/*
-   Matches: For\slicensing\sand\sother\slegal\sdetails,\ssee\sthe\sfile\slegal.c.
-   License: GPL-2 or GPL-3 or MPL-1.1
-  -
-   Glob: libs/libzrtp/src/zrtp_legal.c
-   Matches: As\sa\sspecial\sexception,\syou\smay\scombine\sthis\slibrary\swith\sthe\scode
-   Matches: License\sVersion\s1.1\s\(MPLv1.1\).
-   License: AGPL-3 or MPL-1.1
-  -
-   Glob: libs/libzrtp/third_party/bnlib/legal.c
-   Matches: As\sa\sspecial\sexception,\syou\smay\scombine\sthis\slibrary\swith\sthe\scode
-   Matches: License\sVersion\s1.1\s\(MPLv1.1\).
-   License: GPL-2 or GPL-3 or MPL-1.1
-  -
-   Glob: libs/libzrtp/projects/symbian/DelayRuner.h
-   Matches: Copyright\s+:\sCopyright\s\(c\)\s2010\sSoft\sIndustry
-   Copyright: 2010 Soft Industry
   -
    Glob: libs/win32/sqlite/*.[ch]
    Matches: The\sauthor\sdisclaims\scopyright\sto\sthis\ssource\scode.

debian/rules

@@ -74,7 +74,7 @@ override_dh_auto_clean:
 		--host=$(DEB_HOST_GNU_TYPE) --build=$(DEB_BUILD_GNU_TYPE) \
 		--prefix=/usr --localstatedir=/var --sysconfdir=/etc \
 		--with-gnu-ld --with-python --with-python3 --with-erlang --with-openssl \
-		--enable-core-odbc-support --enable-zrtp
+		--enable-core-odbc-support
 	touch $@
 
 override_dh_auto_configure: .stamp-configure