diff -urN libnice-0.1.18.orig/docs/reference/libnice/meson.build libnice-0.1.18/docs/reference/libnice/meson.build
--- libnice-0.1.18.orig/docs/reference/libnice/meson.build	2021-05-21 14:28:05.745156826 -0600
+++ libnice-0.1.18/docs/reference/libnice/meson.build	2021-05-21 14:28:25.091881508 -0600
@@ -63,14 +63,3 @@
              ],
              install: true,
              check: true)
-
-# If we ever need to regenerate this diagram.
-# Since it’s not expected to change much, let’s not depend on GraphViz to
-# build the docs (that's also why we don't use find_program('dot') here)
-run_target('update-states.png',
-  command: ['dot',
-            '-Tpng',
-            '-o', join_paths(meson.current_source_dir(), 'states.png'),
-            '-Gsize=9.6,2.9!',
-            '-Gdpi=200',
-            files('states.gv')])