remove getuid_callout from multipath.conf

[mrakopes]

In multipath config generated by hpe-csi-node is line:

getuid_callout /lib/udev/scsi_id --whitelisted --device=/dev/%n

getuid_callout is long-deprecated (since 2013) and this year it was removed from multipath tools at all: opensvc/multipath-tools@21b3d6b

I believe it should be removed from hpe-linux-config configmap (or replaced by something more apropriate?)