Missing pages in print preview when scorolling.

It is possible that two providers for the same page are assigned
to two preview views despite temporariliy while rebinding. We were
however releasing the provider from the view which is being bound
if not for the same page which as a result was cancelling rendering
of this page which is provided to another view via another provider.
Hence, having an empty page. Removed the unnecessary code to release
a provider when binding the view - release is happening only if the
view holder is recycled.

bug:17515670

Change-Id: I197438c16cfdb363f521cd1320f154da54eea5f5