Removing unused variables

*** Variables ***

${VNFM_HOST}      localhost    # Hostname of the VNFM

${VNFM_PORT}      8080    # Listening port of the VNFM

${NFVO_HOST}      localhost    # Hostname of the NFVO

${NFVO_PORT}      8081    # Listening port of the NFVO

${VNFM_SCHEMA}    https

${NFVO_SCHEMA}    https

${AUTHORIZATION_HEADER}    Authorization

${AUTHORIZATION_TOKEN}    Bearer 0b79bab50daca910b000d4f1a2b675d604257e42

${CONTENT_TYPE}    application/json

${CONTENT_TYPE_PATCH}    application/merge-patch+json

${ACCEPT_JSON}         application/json

${ACCEPT}         application/json

${apiRoot}        /

${apiName}        nslcm

${apiMajorVersion}     v2

${AUTH_USAGE}     1

${WRONG_AUTHORIZATION}    Bearer    XXXXXWRONGXXXXX

${nsInstanceId}       6fc3539c-e602-4afa-8e13-962fb5a7d81f

${nsdId}                58a7beb6-aa89-405e-bd90-7d276b967c03

${disabledNsdId}        fca7c896-a7d0-4ff8-865e-f5c8ee2fd1c3

${ConflictNsInstanceId}    007c111c-e602-4afa-8e13-962fb5a7d81d

${nsInstanceName}    Test-nsInstance

${nsInstanceDescription}    description ns

${nsInstanceDescription_Update}    Updated description ns

${nsFlavourId}      0

${nsDegreeHealing}      HEAL_RESTORE

${vimAccountId}      	931f6a4d-6a97-43f3-a6f0-13853ef577ea

${SINGLE_FILE_VNFD}    1    # If VNFD is PLAIN TEXT

${ACCEPT_PLAIN}    text/plain

${ACCEPT_ZIP}     application/zip

${nsPkgId_processing}    007c111c-38a1-42c0-a666-7475ecb1567c

${ARTIFACT_TYPE}    application/octet-stream

${ARTIFACT_ID}    artifactId

${WRONG_ACCEPT}    application/json

${nsLcmOpOccId}    6fc3539c-e602-4afa-8e13-962fb5a7d81d

${CancelMode}    GRACEFUL

${NFVO_DUPLICATION}    0

${sub_filter}    id=41fdd38a-3d4c-465c-83e0-f80e014425f8

${sub_filter_invalid}    nfvid=41fdd38a-3d4c-465c-83e0-f80e014425f8

${NEG_filter_nsLcmOpOcc}    nfvid=41fdd38a-3d4c-465c-83e0-f80e014425f8 

${subscriptionId}    6fc3539c-e602-4afa-8e13-962fb5a7d81f

${VnfLcmOperationOccurrenceNotification}    {}

${VnfIdentifierCreationNotification}    {}

${VnfIdentifierDeletionNotification}    {}

${vnfUpdateType}    ADD_VNF

${vnfInstanceId}    id-of-new-vnf-instance-for-UPDATE-NS-Task

${instantiationLevelId}     myNextLevel

${callback_uri}    http://localhost

${callback_endpoint}    /endpoint

${callback_endpoint_fwd}    /endpoint/check

${callback_endpoint_error}    /endpoint_404

${sleep_interval}    20s

${total_polling_time}   2 min

${polling_interval}     10 sec

${response}    {}

${Etag}=    an etag

${Etag_modified}=    a modified etag

${NEG_FILTER}    attribute_not_exist=some_value

${NEG_SELECTOR}    fields=wrong_field

${json}    {"notificationStatus": ""}

${tosca_type_NsCP}    tosca.nodes.nfv.Cp

${VDU_IDs}

${VNF_IDs}

${virtualLink_IDs}

${CP_IDs}

${Storage_IDs}

${internalCP_IDs}

${InstantiationLevel_IDs}

${NS_VirtualLink_IDs}

${NsCP_IDs}

${SAP_IDs}

${NS_DescriptorID}

${Designer}

${NS_Name}

${NS_Version}

${NS_InvariantId}

${Descriptor_ID}

${Provider}