updated internal variables file and removed unused environment variables

${CONTENT_TYPE_ZIP}    application/zip

${NFVO_VNFD_PLAIN}    1

${NFVO_VNFD_ZIP}    0

${vnfPkgPlainVNFD}    c26ad7fb-072b-48c4-a663-7d71646d9e98    # The VNF Pakcage contains a VNFD which is a Single Plain File

#${vnfPkgPlainVNFD}    c26ad7fb-072b-48c4-a663-7d71646d9e98    # The VNF Pakcage contains a VNFD which is a Single Plain File

${vnfPkgZipVNFD}    f5b220d4-6177-4ebb-a554-a43311e16075    # The VNF Package contains a VNFD composed by multiple files

${erroneousVnfPkgId}    erroneousPkgId

${onboardingStateVnfPkgId}    788106a2-d692-44f3-a86d-384f0ce35e42    # The VNF Package is in CREATED onboardingState

#${Software_Version}

#${Descriptor_Version}

${Flavour_ID}

${NFVO_PLAIN}

${NFVO_VNFD_PLAIN}

${NFVO_VNFD_ZIP}