Repackaging is now being done by the CTS signature tests that break if
they used the original classes from the shared libraries. This change
removes the repackaged.android.test... libraries.
Bug: 209607558
Test: cts/tests/signature/runSignatureTests.sh
Change-Id: I8745fc7b41099f9f15d76a4e9d7cf6b15e794b92