[core] remove libdingaling from tree

debian/bootstrap.sh

@@ -657,7 +657,6 @@ Depends: \${misc:Depends}, freeswitch (= \${binary:Version}),
  freeswitch-mod-dialplan-asterisk (= \${binary:Version}),
  freeswitch-mod-dialplan-directory (= \${binary:Version}),
  freeswitch-mod-dialplan-xml (= \${binary:Version}),
- freeswitch-mod-dingaling (= \${binary:Version}),
  freeswitch-mod-loopback (= \${binary:Version}),
  freeswitch-mod-portaudio (= \${binary:Version}),
  freeswitch-mod-rtc (= \${binary:Version}),
@@ -896,7 +895,6 @@ Depends: \${misc:Depends}, freeswitch (= \${binary:Version}),
  freeswitch-mod-dialplan-asterisk-dbg (= \${binary:Version}),
  freeswitch-mod-dialplan-directory-dbg (= \${binary:Version}),
  freeswitch-mod-dialplan-xml-dbg (= \${binary:Version}),
- freeswitch-mod-dingaling-dbg (= \${binary:Version}),
  freeswitch-mod-loopback-dbg (= \${binary:Version}),
  freeswitch-mod-portaudio-dbg (= \${binary:Version}),
  freeswitch-mod-rtc-dbg (= \${binary:Version}),

debian/control-modules

@@ -431,10 +431,6 @@ Description: mod_alsa
  Adds mod_alsa.
 Build-Depends: libasound2-dev
 
-Module: endpoints/mod_dingaling
-Description: mod_dingaling
- Adds mod_dingaling.
-
 Module: endpoints/mod_gsmopen
 Description: mod_gsmopen
  Adds mod_gsmopen.

debian/copyright

@@ -1595,15 +1595,6 @@ Files: libs/silk/*
 Copyright: 2006-2011, Skype Limited.
 License: BSD-2-clause
 
-Files: libs/libdingaling/*
-Copyright: 2005-2014, Anthony Minessale II <anthm@freeswitch.org>
- 2001-2003 Allan Saddi <allan@saddi.com>
-License: MPL-1.1
-
-Files: libs/libdingaling/src/sha1.[ch]
-Copyright: 2001-2003 Allan Saddi <allan@saddi.com>
-License: BSD-2-clause
-
 Files: libs/libcodec2/*
 Copyright: 1990-2010 David Rowe
  1990-2010 David Rowe 2009