[dia] Drop outdated sozi integration, fixes #398

[Zander <zbrown src gnome org>]

commit 216ba0d4882035ba309e8ba4b670fbeb413c9365
Author: Zander Brown <zbrown gnome org>
Date:   Mon May 13 22:28:47 2019 +0100

    Drop outdated sozi integration, fixes #398

 objects/Sozi/meson.build                       |  14 -
 objects/Sozi/pixmaps/sozi-frame.xpm            | 196 -------
 objects/Sozi/pixmaps/sozi-media.xpm            | 214 --------
 objects/Sozi/readme.txt                        |  50 --
 objects/Sozi/sozi-frame.c                      | 690 ------------------------
 objects/Sozi/sozi-media.c                      | 505 ------------------
 objects/Sozi/sozi-object.c                     | 622 ----------------------
 objects/Sozi/sozi-object.h                     | 142 -----
 objects/Sozi/sozi-player.h                     | 355 -------------
 objects/Sozi/sozi.c                            |  47 --
 objects/meson.build                            |   1 -
 po/POTFILES.in                                 |   4 -
 samples/Sozi/sozi-clip-test.dia                | 358 -------------
 samples/Sozi/sozi-tutorial-complete-layers.dia | 695 -------------------------
 sheets/Sozi.sheet.in                           |  13 -
 sheets/meson.build                             |   5 -
 16 files changed, 3911 deletions(-)
---
diff --git a/objects/meson.build b/objects/meson.build
index ec167e01..120d3107 100644
--- a/objects/meson.build
+++ b/objects/meson.build
@@ -15,7 +15,6 @@ subdir('KAOS')
 subdir('Misc')
 subdir('network')
 subdir('SADT')
-subdir('Sozi')
 subdir('standard')
 subdir('UML')
 
diff --git a/po/POTFILES.in b/po/POTFILES.in
index 25eaa45d..3b4df7f4 100644
--- a/po/POTFILES.in
+++ b/po/POTFILES.in
@@ -146,9 +146,6 @@ objects/SADT/annotation.c
 objects/SADT/arrow.c
 objects/SADT/box.c
 objects/SADT/sadt.c
-objects/Sozi/sozi.c
-objects/Sozi/sozi-frame.c
-objects/Sozi/sozi-media.c
 objects/standard/arc.c
 objects/standard/bezier.c
 objects/standard/beziergon.c
@@ -274,6 +271,5 @@ sheets/Pneumatic.sheet.in
 sheets/SADT.sheet.in
 sheets/SDL.sheet.in
 sheets/Shape_Design.sheet.in
-sheets/Sozi.sheet.in
 sheets/sybase.sheet.in
 sheets/UML.sheet.in
diff --git a/sheets/meson.build b/sheets/meson.build
index 53b204b5..849bc985 100644
--- a/sheets/meson.build
+++ b/sheets/meson.build
@@ -91,11 +91,6 @@ sheet_files = [
     'Shape_Design.sheet',
 ]
 
-# TODO: this needs to depend on whether we have valid instalation of sozi.
-if false
-    sheet_files += ['Sozi.sheet']
-endif
-
 sheet_files_targets = []
 
 # TODO: use gettext: https://github.com/mesonbuild/meson/issues/1565