Remove chart version from deployment selector to allow upgrades
Remove chart version from deployment selector to allow upgrades

Fixes this error:

Error: UPGRADE FAILED: Deployment.apps "rook-operator" is invalid: spec
.template.metadata.labels: Invalid value:
map[string]string{"chart":"rook-0.7.1", "app":"rook-operator"}:
`selector` does not match template `labels`

Signed-off-by: Maximilian Gaß <c1cf461f0909091b9e190483419da29f7a072d14@babiel.com>

rook/rook,rook/rook,rook/rook,rook/nfs,rook/nfs,rook/rook,rook/rook,rook/nfs