all: change module to google.golang.org/protobuf

Temporarily remove go.mod, since we can't generate an accurate one until
the corresponding v1 change is submitted.

Change-Id: I1e1ad97f2b455e33f61ffaeb8676289795e47e72
Reviewed-on: https://go-review.googlesource.com/c/protobuf/+/177000
Reviewed-by: Joe Tsai <thebrokentoaster@gmail.com>
diff --git a/encoding/jsonpb/bench_test.go b/encoding/jsonpb/bench_test.go
index eba4119..3dcc5e0 100644
--- a/encoding/jsonpb/bench_test.go
+++ b/encoding/jsonpb/bench_test.go
@@ -7,8 +7,8 @@
 import (
 	"testing"
 
-	"github.com/golang/protobuf/v2/encoding/jsonpb"
-	knownpb "github.com/golang/protobuf/v2/types/known"
+	"google.golang.org/protobuf/encoding/jsonpb"
+	knownpb "google.golang.org/protobuf/types/known"
 )
 
 func BenchmarkUnmarshal_Duration(b *testing.B) {
diff --git a/encoding/jsonpb/decode.go b/encoding/jsonpb/decode.go
index 1b5a5af..1712bf6 100644
--- a/encoding/jsonpb/decode.go
+++ b/encoding/jsonpb/decode.go
@@ -11,13 +11,13 @@
 	"strconv"
 	"strings"
 
-	"github.com/golang/protobuf/v2/internal/encoding/json"
-	"github.com/golang/protobuf/v2/internal/errors"
-	"github.com/golang/protobuf/v2/internal/pragma"
-	"github.com/golang/protobuf/v2/internal/set"
-	"github.com/golang/protobuf/v2/proto"
-	pref "github.com/golang/protobuf/v2/reflect/protoreflect"
-	"github.com/golang/protobuf/v2/reflect/protoregistry"
+	"google.golang.org/protobuf/internal/encoding/json"
+	"google.golang.org/protobuf/internal/errors"
+	"google.golang.org/protobuf/internal/pragma"
+	"google.golang.org/protobuf/internal/set"
+	"google.golang.org/protobuf/proto"
+	pref "google.golang.org/protobuf/reflect/protoreflect"
+	"google.golang.org/protobuf/reflect/protoregistry"
 )
 
 // Unmarshal reads the given []byte into the given proto.Message.
diff --git a/encoding/jsonpb/decode_test.go b/encoding/jsonpb/decode_test.go
index 05e619d..0410d53 100644
--- a/encoding/jsonpb/decode_test.go
+++ b/encoding/jsonpb/decode_test.go
@@ -10,16 +10,16 @@
 	"testing"
 
 	protoV1 "github.com/golang/protobuf/proto"
-	"github.com/golang/protobuf/v2/encoding/jsonpb"
-	"github.com/golang/protobuf/v2/encoding/testprotos/pb2"
-	"github.com/golang/protobuf/v2/encoding/testprotos/pb3"
-	pimpl "github.com/golang/protobuf/v2/internal/impl"
-	"github.com/golang/protobuf/v2/internal/scalar"
-	"github.com/golang/protobuf/v2/proto"
-	preg "github.com/golang/protobuf/v2/reflect/protoregistry"
-	"github.com/golang/protobuf/v2/runtime/protoiface"
+	"google.golang.org/protobuf/encoding/jsonpb"
+	"google.golang.org/protobuf/encoding/testprotos/pb2"
+	"google.golang.org/protobuf/encoding/testprotos/pb3"
+	pimpl "google.golang.org/protobuf/internal/impl"
+	"google.golang.org/protobuf/internal/scalar"
+	"google.golang.org/protobuf/proto"
+	preg "google.golang.org/protobuf/reflect/protoregistry"
+	"google.golang.org/protobuf/runtime/protoiface"
 
-	knownpb "github.com/golang/protobuf/v2/types/known"
+	knownpb "google.golang.org/protobuf/types/known"
 )
 
 func init() {
diff --git a/encoding/jsonpb/encode.go b/encoding/jsonpb/encode.go
index 256cd74..1d353b7 100644
--- a/encoding/jsonpb/encode.go
+++ b/encoding/jsonpb/encode.go
@@ -9,12 +9,12 @@
 	"fmt"
 	"sort"
 
-	"github.com/golang/protobuf/v2/internal/encoding/json"
-	"github.com/golang/protobuf/v2/internal/errors"
-	"github.com/golang/protobuf/v2/internal/pragma"
-	"github.com/golang/protobuf/v2/proto"
-	pref "github.com/golang/protobuf/v2/reflect/protoreflect"
-	"github.com/golang/protobuf/v2/reflect/protoregistry"
+	"google.golang.org/protobuf/internal/encoding/json"
+	"google.golang.org/protobuf/internal/errors"
+	"google.golang.org/protobuf/internal/pragma"
+	"google.golang.org/protobuf/proto"
+	pref "google.golang.org/protobuf/reflect/protoreflect"
+	"google.golang.org/protobuf/reflect/protoregistry"
 )
 
 // Marshal writes the given proto.Message in JSON format using default options.
diff --git a/encoding/jsonpb/encode_test.go b/encoding/jsonpb/encode_test.go
index c2dd2d2..6043209 100644
--- a/encoding/jsonpb/encode_test.go
+++ b/encoding/jsonpb/encode_test.go
@@ -11,20 +11,20 @@
 	"strings"
 	"testing"
 
-	"github.com/golang/protobuf/v2/encoding/jsonpb"
-	"github.com/golang/protobuf/v2/internal/encoding/pack"
-	"github.com/golang/protobuf/v2/internal/encoding/wire"
-	pimpl "github.com/golang/protobuf/v2/internal/impl"
-	"github.com/golang/protobuf/v2/internal/scalar"
-	"github.com/golang/protobuf/v2/proto"
-	preg "github.com/golang/protobuf/v2/reflect/protoregistry"
-	"github.com/golang/protobuf/v2/runtime/protoiface"
 	"github.com/google/go-cmp/cmp"
 	"github.com/google/go-cmp/cmp/cmpopts"
+	"google.golang.org/protobuf/encoding/jsonpb"
+	"google.golang.org/protobuf/internal/encoding/pack"
+	"google.golang.org/protobuf/internal/encoding/wire"
+	pimpl "google.golang.org/protobuf/internal/impl"
+	"google.golang.org/protobuf/internal/scalar"
+	"google.golang.org/protobuf/proto"
+	preg "google.golang.org/protobuf/reflect/protoregistry"
+	"google.golang.org/protobuf/runtime/protoiface"
 
-	"github.com/golang/protobuf/v2/encoding/testprotos/pb2"
-	"github.com/golang/protobuf/v2/encoding/testprotos/pb3"
-	knownpb "github.com/golang/protobuf/v2/types/known"
+	"google.golang.org/protobuf/encoding/testprotos/pb2"
+	"google.golang.org/protobuf/encoding/testprotos/pb3"
+	knownpb "google.golang.org/protobuf/types/known"
 )
 
 // splitLines is a cmpopts.Option for comparing strings with line breaks.
diff --git a/encoding/jsonpb/well_known_types.go b/encoding/jsonpb/well_known_types.go
index ddd7e97..c3ca47e 100644
--- a/encoding/jsonpb/well_known_types.go
+++ b/encoding/jsonpb/well_known_types.go
@@ -11,11 +11,11 @@
 	"strings"
 	"time"
 
-	"github.com/golang/protobuf/v2/internal/encoding/json"
-	"github.com/golang/protobuf/v2/internal/errors"
-	"github.com/golang/protobuf/v2/internal/fieldnum"
-	"github.com/golang/protobuf/v2/proto"
-	pref "github.com/golang/protobuf/v2/reflect/protoreflect"
+	"google.golang.org/protobuf/internal/encoding/json"
+	"google.golang.org/protobuf/internal/errors"
+	"google.golang.org/protobuf/internal/fieldnum"
+	"google.golang.org/protobuf/proto"
+	pref "google.golang.org/protobuf/reflect/protoreflect"
 )
 
 // isCustomType returns true if type name has special JSON conversion rules.