core: remove unused constant

_UDEV_RULE_FILE_NAME_VM was no longer in use, can be removed.

Signed-off-by: Jasper Berton <jasper.berton@team.blue>

Author: JasperB-TeamBlue

lib/vdsm/supervdsm_api/udev.py

@@ -31,9 +31,6 @@
 _UDEV_RULE_FILE_DIR = "/etc/udev/rules.d/"
 _UDEV_RULE_FILE_PREFIX = "99-vdsm-"
 _UDEV_RULE_FILE_EXT = ".rules"
-_UDEV_RULE_FILE_NAME_VM = os.path.join(
-    _UDEV_RULE_FILE_DIR, _UDEV_RULE_FILE_PREFIX + '%s-%s' +
-    _UDEV_RULE_FILE_EXT)
 
 # TODO: remove this when managed devices no longer use appropriateDevice
 _UDEV_RULE_FILE_NAME = os.path.join(