Revert "Add support for importing TPM2 keys with PKCS11 vendor attrib… #456

Job	Run time
coverage-test	7m 28s
generic-build-test (ubuntu-18.04, gcc)	7m 2s
generic-build-test (ubuntu-18.04, clang)	6m 17s
fuzzing-test	4m 28s
generic-build-test (ubuntu-20.04, gcc)	6m 59s
coverity-test	0s
generic-build-test (ubuntu-20.04, clang)	5m 48s
generic-build-test (fedora-30, gcc)	7m 12s
generic-build-test (fedora-30, clang)	6m 33s
generic-build-test (opensuse-leap, gcc)	6m 56s
generic-build-test (opensuse-leap, clang)	6m 5s
generic-build-test (ubuntu-22.04, gcc)	44m 31s
	1h 49m 19s

Provide feedback