remove exclusion of acm-psp from oss manifest (#59)
remove exclusion of acm-psp from oss manifest (#59)

This ensures CS works on clusters with PSP enabled. Although PSP is
deprecated, there might still be users for it until we stop supporting
GKE versions older than 1.25.
GoogleContainerTools/kpt-config-sync,GoogleContainerTools/kpt-config-sync