Use the commons-io prebuilt instead of local source for voicemail.

Test: treehugger, make

This change removes part of the local apache source and depends on
a prebuilt jar.

In a future change, the rest of the apache code will be removed
from Dialer and also replaced with prebuilts.

Bug: 35391680
Change-Id: Ibbc4e62a23f30de5a11c07cb6cc4c00365c4f415