Disable ensureFlowRevision for contributions queries

Generally we want the ensureFlowRevision which does final double
checks that we arn't outputing on an unintended page. The one place we
need to have an exception for is Contributions. This may turn up pages
that were once flow pages but are not currently, they are still
considered constributions and display as such.

This patch removes the extra checks that ensure we are only dealing with
flow enabled pages, but only when doing Contributions queries.

Bug: 70662
Change-Id: I70f8c9a14641e8e065b02319b7075b4bc9dc87c4
Merge "Disable ensureFlowRevision for contributions queries"