Over the last month Apple has been removing most of the most popular music downloading apps from its App Store. Included are apps that linked to third-party file sharing sites. A search on iTunes for "music download" in the App Store now displays a message encouraging users to try out iTunes Radio.
The move puts Apple more in line with the wishes of its major label partners and is not bad for business at it's own iTunes Store, iTunes Radio, and newly acquired Beats Music.
Previously, the same search would have shown many apps that could download music from Soundcloud, YouTube and other music sites. Here is an older iTunes music app chart via MacRumors who first noticed the changes.