Remove workarounds by data_device_bins

Previously, the test has dirty hacks that force building the device
executable in correct name. Swicth to the proper solution now that we
have it.

Also, re-format to make the upload hook happy.

Bug: 182919153
Test: atest ApkVerityTest
Change-Id: I4db2cdbfc5cf435113e6972654e999166f369d9f