Update c/image to v4.0.1 and buildah to 1.11.3

This requires updating all import paths throughout, and a matching
buildah update to interoperate.

I can't figure out the reason for go.mod tracking
	github.com/containers/image v3.0.2+incompatible // indirect
((go mod graph) lists it as a direct dependency of libpod, but
(go list -json -m all) lists it as an indirect dependency),
but at least looking at the vendor subdirectory, it doesn't seem
to be actually used in the built binaries.

Signed-off-by: Miloslav Trmač <mitr@redhat.com>

1 files changed, 0 insertions, 56 deletions

diff --git a/vendor/github.com/docker/libtrust/hash.go b/vendor/github.com/docker/libtrust/hash.go
deleted file mode 100644
index a2df787dd..000000000
--- a/vendor/github.com/docker/libtrust/hash.go
+++ /dev/null
@@ -1,56 +0,0 @@
-package libtrust
-
-import (
-	"crypto"
-	_ "crypto/sha256" // Registrer SHA224 and SHA256
-	_ "crypto/sha512" // Registrer SHA384 and SHA512
-	"fmt"
-)
-
-type signatureAlgorithm struct {
-	algHeaderParam string
-	hashID         crypto.Hash
-}
-
-func (h *signatureAlgorithm) HeaderParam() string {
-	return h.algHeaderParam
-}
-
-func (h *signatureAlgorithm) HashID() crypto.Hash {
-	return h.hashID
-}
-
-var (
-	rs256 = &signatureAlgorithm{"RS256", crypto.SHA256}
-	rs384 = &signatureAlgorithm{"RS384", crypto.SHA384}
-	rs512 = &signatureAlgorithm{"RS512", crypto.SHA512}
-	es256 = &signatureAlgorithm{"ES256", crypto.SHA256}
-	es384 = &signatureAlgorithm{"ES384", crypto.SHA384}
-	es512 = &signatureAlgorithm{"ES512", crypto.SHA512}
-)
-
-func rsaSignatureAlgorithmByName(alg string) (*signatureAlgorithm, error) {
-	switch {
-	case alg == "RS256":
-		return rs256, nil
-	case alg == "RS384":
-		return rs384, nil
-	case alg == "RS512":
-		return rs512, nil
-	default:
-		return nil, fmt.Errorf("RSA Digital Signature Algorithm %q not supported", alg)
-	}
-}
-
-func rsaPKCS1v15SignatureAlgorithmForHashID(hashID crypto.Hash) *signatureAlgorithm {
-	switch {
-	case hashID == crypto.SHA512:
-		return rs512
-	case hashID == crypto.SHA384:
-		return rs384
-	case hashID == crypto.SHA256:
-		fallthrough
-	default:
-		return rs256
-	}
-}