cli/registry/client: remove unused PutManifestOptions

This type was added in 02719bd, but was
never used;

    git rev-parse --verify HEAD
    02719bd

    git grep 'PutManifestOptions'
    cli/registry/client/client.go:// PutManifestOptions is the data sent to push a manifest
    cli/registry/client/client.go:type PutManifestOptions struct {

This patch removes it, because it's not used.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

Author: thaJeztah

cli/registry/client/client.go

@@ -37,12 +37,6 @@ func NewRegistryClient(resolver AuthConfigResolver, userAgent string, insecure b
 // AuthConfigResolver returns Auth Configuration for an index
 type AuthConfigResolver func(ctx context.Context, index *registrytypes.IndexInfo) registrytypes.AuthConfig
 
-// PutManifestOptions is the data sent to push a manifest
-type PutManifestOptions struct {
-	MediaType string
-	Payload   []byte
-}
-
 type client struct {
 	authConfigResolver AuthConfigResolver
 	insecureRegistry   bool