tests: Lingering ID_FS_TYPE=LVM2_member attribute

[tbzatek]

Following the recent btrfs tests that include checks for the org.freedesktop.UDisks2.Block.IdType property with expectation to be empty a lingering LVM2_member value was found. This happens when running a full d-bus test suite with LVM2 tests running prior to these failing ones.

TODO: add tests checking the mentioned property after all the LVM2 tests have finished.

P: /devices/tcm_loop_0/tcm_loop_adapter_3444/host6/target6:0:1/6:0:1:0/block/sda
N: sda
L: 0
S: disk/by-id/scsi-1LIO-ORG_udisks_test_dis:65541bbc-0ffc-42cb-b639-6ce91a818511
S: disk/by-id/lvm-pv-uuid-d8Og9h-x1Q0-8ofI-xqoy-bHqE-UPEK-Eoly27
S: disk/by-id/scsi-SLIO-ORG_udisks_test_dis_65541bbc-0ffc-42cb-b639-6ce91a818511
S: disk/by-id/wwn-0x600140565541bbc0ffc42cbb6396ce91
S: disk/by-id/scsi-3600140565541bbc0ffc42cbb6396ce91
E: DEVPATH=/devices/tcm_loop_0/tcm_loop_adapter_3444/host6/target6:0:1/6:0:1:0/block/sda
E: DEVNAME=/dev/sda
E: DEVTYPE=disk
E: MAJOR=8
E: MINOR=0
E: SUBSYSTEM=block
E: USEC_INITIALIZED=1810127766169
E: ID_SCSI=1
E: ID_VENDOR=LIO-ORG
E: ID_VENDOR_ENC=LIO-ORG\x20
E: ID_MODEL=udisks_test_dis
E: ID_MODEL_ENC=udisks_test_dis\x20
E: ID_REVISION=4.0
E: ID_TYPE=disk
E: ID_SERIAL=3600140565541bbc0ffc42cbb6396ce91
E: ID_SERIAL_SHORT=600140565541bbc0ffc42cbb6396ce91
E: ID_WWN=0x600140565541bbc0
E: ID_WWN_VENDOR_EXTENSION=0xffc42cbb6396ce91
E: ID_WWN_WITH_EXTENSION=0x600140565541bbc0ffc42cbb6396ce91
E: ID_TARGET_PORT=0
E: ID_SCSI_SERIAL=65541bbc-0ffc-42cb-b639-6ce91a818511
E: ID_BUS=scsi
E: ID_FS_UUID=d8Og9h-x1Q0-8ofI-xqoy-bHqE-UPEK-Eoly27
E: ID_FS_UUID_ENC=d8Og9h-x1Q0-8ofI-xqoy-bHqE-UPEK-Eoly27
E: ID_FS_VERSION=LVM2 001
E: ID_FS_TYPE=LVM2_member
E: ID_FS_USAGE=raid
E: SCSI_TPGS=3
E: SCSI_TYPE=disk
E: SCSI_VENDOR=LIO-ORG
E: SCSI_VENDOR_ENC=LIO-ORG\x20
E: SCSI_MODEL=udisks_test_dis
E: SCSI_MODEL_ENC=udisks_test_dis\x20
E: SCSI_REVISION=4.0
E: ID_SCSI_INQUIRY=1
E: SCSI_IDENT_SERIAL=65541bbc-0ffc-42cb-b639-6ce91a818511
E: SCSI_IDENT_LUN_NAA_REGEXT=600140565541bbc0ffc42cbb6396ce91
E: SCSI_IDENT_LUN_T10=LIO-ORG_udisks_test_dis:65541bbc-0ffc-42cb-b639-6ce91a818511
E: SCSI_IDENT_PORT_RELATIVE=1
E: SCSI_IDENT_PORT_TARGET_PORT_GROUP=0x0
E: SCSI_IDENT_LUN_LOGICAL_UNIT_GROUP=0x0
E: SCSI_IDENT_PORT_NAME=naa.50014055ba294ff9,t,0x0001
E: SCSI_IDENT_TARGET_NAME=naa.50014055ba294ff9
E: SYSTEMD_READY=1
E: SYSTEMD_ALIAS=/dev/block/8:0
E: SYSTEMD_WANTS=lvm2-pvscan@8:0.service
E: DEVLINKS=/dev/disk/by-id/scsi-1LIO-ORG_udisks_test_dis:65541bbc-0ffc-42cb-b639-6ce91a818511 /dev/disk/by-id/lvm-pv-uuid-d8Og9h-x1Q0-8ofI-xqoy-bHqE-UPEK-Eoly27 /dev/disk/by-id/scsi-SLIO-ORG_udisks_test_dis_65541bbc-0ffc-42cb-b639-6ce91a818511 /dev/disk/by-id/wwn-0x600140565541bbc0ffc42cbb6396ce91 /dev/disk/by-id/scsi-3600140565541bbc0ffc42cbb6396ce91
E: TAGS=:systemd: