The tpm_aca_provision script used to try to guess the version
of the TPM on the machine and call the appropriate command
to provision the TPM. However:
1. The guessing was error prone,
2. The command to provision the TPM is the same regardless of the
TPM version, and
3. By the time the script is run, either the TPM Provisioner 1.2
package or the TPM Provisioner 2.0 package has already been
installed. By that point, it's too late to be wondering which
version of TPM is on the machine. The decision of which package
to install is guided by the documentation.
