image formats are loaded via qimage/qimagereader and friends, the user/developer does not choose which ones will be used so giving him a warning about sequential devices not being supported is not going to help anyone, only spam their shell/logs.
REVIEW: 123156
Acked by David Edmundson
Frameworks have a convention of naming uninstalled headers in src/ with
a _p at the end of the name, to make it clear they are not part of the
API. None of the headers in KImageFormats are installed, so it is not
really necessary to follow this convention, but we follow it anyway for
the benefit of both humans and tools (like kapidox).
