Remove third_party/golang.org/x/mobile as it is no longer used with Go 1.5.

third_party/go/src/golang.org/x/mobile/cmd/gomobile/cert.go

Index: third_party/go/src/golang.org/x/mobile/cmd/gomobile/cert.go
diff --git a/third_party/go/src/golang.org/x/mobile/cmd/gomobile/cert.go b/third_party/go/src/golang.org/x/mobile/cmd/gomobile/cert.go
deleted file mode 100644
index 0aa00b3a49b238248b9325522b5d1cf304dd8831..0000000000000000000000000000000000000000
--- a/third_party/go/src/golang.org/x/mobile/cmd/gomobile/cert.go
+++ /dev/null
@@ -1,154 +0,0 @@
-// Copyright 2015 The Go Authors.  All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package main
-
-import (
-	"crypto"
-	"crypto/rsa"
-	"crypto/sha1"
-	"crypto/x509"
-	"crypto/x509/pkix"
-	"encoding/asn1"
-	"io"
-	"math/big"
-	"time"
-)
-
-// signPKCS7 does the minimal amount of work necessary to embed an RSA
-// signature into a PKCS#7 certificate.
-//
-// We prepare the certificate using the x509 package, read it back in
-// to our custom data type and then write it back out with the signature.
-func signPKCS7(rand io.Reader, priv *rsa.PrivateKey, msg []byte) ([]byte, error) {
-	const serialNumber = 0x5462c4dd // arbitrary
-	name := pkix.Name{CommonName: "gomobile"}
-
-	template := &x509.Certificate{
-		SerialNumber:       big.NewInt(serialNumber),
-		SignatureAlgorithm: x509.SHA1WithRSA,
-		Subject:            name,
-	}
-
-	b, err := x509.CreateCertificate(rand, template, template, priv.Public(), priv)
-	if err != nil {
-		return nil, err
-	}
-
-	c := certificate{}
-	if _, err := asn1.Unmarshal(b, &c); err != nil {
-		return nil, err
-	}
-
-	h := sha1.New()
-	h.Write(msg)
-	hashed := h.Sum(nil)
-
-	signed, err := rsa.SignPKCS1v15(rand, priv, crypto.SHA1, hashed)
-	if err != nil {
-		return nil, err
-	}
-
-	content := pkcs7SignedData{
-		ContentType: oidSignedData,
-		Content: signedData{
-			Version: 1,
-			DigestAlgorithms: []pkix.AlgorithmIdentifier{{
-				Algorithm:  oidSHA1,
-				Parameters: asn1.RawValue{Tag: 5},
-			}},
-			ContentInfo:  contentInfo{Type: oidData},
-			Certificates: c,
-			SignerInfos: []signerInfo{{
-				Version: 1,
-				IssuerAndSerialNumber: issuerAndSerialNumber{
-					Issuer:       name.ToRDNSequence(),
-					SerialNumber: serialNumber,
-				},
-				DigestAlgorithm: pkix.AlgorithmIdentifier{
-					Algorithm:  oidSHA1,
-					Parameters: asn1.RawValue{Tag: 5},
-				},
-				DigestEncryptionAlgorithm: pkix.AlgorithmIdentifier{
-					Algorithm:  oidRSAEncryption,
-					Parameters: asn1.RawValue{Tag: 5},
-				},
-				EncryptedDigest: signed,
-			}},
-		},
-	}
-
-	return asn1.Marshal(content)
-}
-
-type pkcs7SignedData struct {
-	ContentType asn1.ObjectIdentifier
-	Content     signedData `asn1:"tag:0,explicit"`
-}
-
-// signedData is defined in rfc2315, section 9.1.
-type signedData struct {
-	Version          int
-	DigestAlgorithms []pkix.AlgorithmIdentifier `asn1:"set"`
-	ContentInfo      contentInfo
-	Certificates     certificate  `asn1:"tag0,explicit"`
-	SignerInfos      []signerInfo `asn1:"set"`
-}
-
-type contentInfo struct {
-	Type asn1.ObjectIdentifier
-	// Content is optional in PKCS#7 and not provided here.
-}
-
-// certificate is defined in rfc2459, section 4.1.
-type certificate struct {
-	TBSCertificate     tbsCertificate
-	SignatureAlgorithm pkix.AlgorithmIdentifier
-	SignatureValue     asn1.BitString
-}
-
-// tbsCertificate is defined in rfc2459, section 4.1.
-type tbsCertificate struct {
-	Version      int `asn1:"tag:0,default:2,explicit"`
-	SerialNumber int
-	Signature    pkix.AlgorithmIdentifier
-	Issuer       pkix.RDNSequence // pkix.Name
-	Validity     validity
-	Subject      pkix.RDNSequence // pkix.Name
-	SubjectPKI   subjectPublicKeyInfo
-}
-
-// validity is defined in rfc2459, section 4.1.
-type validity struct {
-	NotBefore time.Time
-	NotAfter  time.Time
-}
-
-// subjectPublicKeyInfo is defined in rfc2459, section 4.1.
-type subjectPublicKeyInfo struct {
-	Algorithm        pkix.AlgorithmIdentifier
-	SubjectPublicKey asn1.BitString
-}
-
-type signerInfo struct {
-	Version                   int
-	IssuerAndSerialNumber     issuerAndSerialNumber
-	DigestAlgorithm           pkix.AlgorithmIdentifier
-	DigestEncryptionAlgorithm pkix.AlgorithmIdentifier
-	EncryptedDigest           []byte
-}
-
-type issuerAndSerialNumber struct {
-	Issuer       pkix.RDNSequence // pkix.Name
-	SerialNumber int
-}
-
-// Various ASN.1 Object Identifies, mostly from rfc3852.
-var (
-	oidPKCS7         = asn1.ObjectIdentifier{1, 2, 840, 113549, 1, 7}
-	oidData          = asn1.ObjectIdentifier{1, 2, 840, 113549, 1, 7, 1}
-	oidSignedData    = asn1.ObjectIdentifier{1, 2, 840, 113549, 1, 7, 2}
-	oidSHA1          = asn1.ObjectIdentifier{1, 3, 14, 3, 2, 26}
-	oidRSAEncryption = asn1.ObjectIdentifier{1, 2, 840, 113549, 1, 1, 1}
-)