Add changelog item

changelog/unreleased/remove-timezone-setting.md

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+Change: Remove timezone setting
+
+We had a timezone setting in our profile settings bundle. As we're not dealing with a timezone yet
+it would be confusing for the user to have a timezone setting available. We removed it, until we
+have a timezone implementation available in ocis-web.
+
+https://github.com/owncloud/ocis-accounts/pull/33