yaml: Remove trust section from examples and tests

With 561ce6f4be ("Remove Notary and Content Trust") we
removed support for content trust. No need to have it
in the YAMLs either.

Signed-off-by: Rolf Neugebauer <rn@rneugeba.io>

examples/influxdb-os.yml

@@ -42,7 +42,3 @@ services:
     env:
       - INFLUXDB_URL=http://127.0.0.1:8086
       - KAPACITOR_URL=http://127.0.0.1:9092
-trust:
-  org:
-    - linuxkit
-    - library