[dice] Remove vendor_available label for dice libraries

This cl removes the vendor_available label for the dice libraries
as this was needed when they were used in the vendor exposed HAL
service dice. Now as that service was removed, we no longer need
this label.

Test: atest diced_utils_test diced_sample_inputs_test
Bug: 268322533
Change-Id: I59aeed9b654a72b8ad83966cb5fad1cdac8995b2
1 file changed