Don't check program selector's type for equality.

As the comments of the whole class says, primary ID is the field used
for checking for equality of the selectors. Current implementation also
checks program type, which is a deprecated field that can be inferred
from primary ID.

Test: open car.Media, add AM station to favorites
Bug: 78296701
Change-Id: I0423f831c2fdca2d1d126ed8a3b8fe40f28022ac