Remove unused values from KEB chart #1036

Job	Run time
environments-cleanup-image / Build image	3m 18s
archiver-image / Build image	3m 55s
expirator-image / Build image	3m 24s
deprovision-retrigger-image / Build image	3m 20s
globalaccounts-image / Build image	3m 35s
kyma-environment-broker-image / Build image	3m 33s
runtime-reconciler-image / Build image	3m 6s
schema-migrator-image / Build image	3m 1s
service-binding-cleanup-image / Build image	2m 34s
subaccount-cleanup-image / Build image	3m 6s
subaccount-sync-image / Build image	3m 20s
	36m 12s

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