Remove unused code (#8517)

* Remove unused code

* Go mod tidy

* Gazelle

Co-authored-by: prylabs-bulldozer[bot] <58059840+prylabs-bulldozer[bot]@users.noreply.github.com>

go.mod

@@ -34,7 +34,6 @@ require (
 	github.com/golang/snappy v0.0.2
 	github.com/google/gofuzz v1.2.0
 	github.com/google/gopacket v1.1.19 // indirect
-	github.com/google/shlex v0.0.0-20191202100458-e7afc7fbc510
 	github.com/google/uuid v1.2.0
 	github.com/graph-gophers/graphql-go v0.0.0-20200309224638-dae41bde9ef9 // indirect
 	github.com/grpc-ecosystem/go-grpc-middleware v1.2.2

go.sum

@@ -375,8 +375,6 @@ github.com/google/pprof v0.0.0-20200229191704-1ebb73c60ed3/go.mod h1:ZgVRPoUq/hf
 github.com/google/pprof v0.0.0-20200430221834-fc25d7d30c6d/go.mod h1:ZgVRPoUq/hfqzAqh7sHMqb3I9Rq5C59dIz2SbBwJ4eM=
 github.com/google/pprof v0.0.0-20200708004538-1a94d8640e99/go.mod h1:ZgVRPoUq/hfqzAqh7sHMqb3I9Rq5C59dIz2SbBwJ4eM=
 github.com/google/renameio v0.1.0/go.mod h1:KWCgfxg9yswjAJkECMjeO8J8rahYeXnNhOm40UhjYkI=
-github.com/google/shlex v0.0.0-20191202100458-e7afc7fbc510 h1:El6M4kTTCOh6aBiKaUGG7oYTSPP8MxqL4YI3kZKwcP4=
-github.com/google/shlex v0.0.0-20191202100458-e7afc7fbc510/go.mod h1:pupxD2MaaD3pAXIBCelhxNneeOaAeabZDe5s4K6zSpQ=
 github.com/google/uuid v1.0.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/google/uuid v1.1.1/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/google/uuid v1.1.2/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=

shared/browser/BUILD.bazel

@@ -6,7 +6,6 @@ go_library(
     srcs = ["browser.go"],
     importpath = "github.com/prysmaticlabs/prysm/shared/browser",
     visibility = ["//visibility:public"],
-    deps = ["@com_github_google_shlex//:go_default_library"],
 )
 
 go_test(

shared/browser/browser.go

@@ -8,8 +8,6 @@ import (
 	"os"
 	"os/exec"
 	"strings"
-
-	"github.com/google/shlex"
 )
 
 // ForOS produces an exec.Cmd to open the web browser for different OS
@@ -32,16 +30,3 @@ func ForOS(goos, url string) *exec.Cmd {
 	cmd.Stderr = os.Stderr
 	return cmd
 }
-
-// FromLauncher parses the launcher string based on shell splitting rules
-func FromLauncher(launcher, url string) (*exec.Cmd, error) {
-	args, err := shlex.Split(launcher)
-	if err != nil {
-		return nil, err
-	}
-
-	args = append(args, url)
-	cmd := exec.Command(args[0], args[1:]...)
-	cmd.Stderr = os.Stderr
-	return cmd, nil
-}

shared/bytesutil/bytes.go

@@ -326,11 +326,6 @@ func BytesToEpochBigEndian(b []byte) types.Epoch {
 	return types.Epoch(BytesToUint64BigEndian(b))
 }
 
-// SlotToBytesLittleEndian conversion.
-func SlotToBytesLittleEndian(i types.Slot) []byte {
-	return Uint64ToBytesLittleEndian(uint64(i))
-}
-
 // SlotToBytesBigEndian conversion.
 func SlotToBytesBigEndian(i types.Slot) []byte {
 	return Uint64ToBytesBigEndian(uint64(i))

shared/keystore/key.go

@@ -33,14 +33,6 @@ import (
 const (
 	keyHeaderKDF = "scrypt"
 
-	// StandardScryptN is the N parameter of Scrypt encryption algorithm, using 256MB
-	// memory and taking approximately 1s CPU time on a modern processor.
-	StandardScryptN = 1 << 18
-
-	// StandardScryptP is the P parameter of Scrypt encryption algorithm, using 256MB
-	// memory and taking approximately 1s CPU time on a modern processor.
-	StandardScryptP = 1
-
 	// LightScryptN is the N parameter of Scrypt encryption algorithm, using 4MB
 	// memory and taking approximately 100ms CPU time on a modern processor.
 	LightScryptN = 1 << 12

validator/client/propose_test.go

@@ -765,7 +765,7 @@ func TestGetGraffitiOrdered_Ok(t *testing.T) {
 			Default: "d",
 		},
 	}
-	for _, want := range [][]byte{[]byte{'a'}, []byte{'b'}, []byte{'c'}, []byte{'d'}, []byte{'d'}} {
+	for _, want := range [][]byte{{'a'}, {'b'}, {'c'}, {'d'}, {'d'}} {
 		got, err := v.getGraffiti(context.Background(), pubKey)
 		require.NoError(t, err)
 		require.DeepEqual(t, want, got)

validator/rpc/health_test.go

@@ -33,14 +33,6 @@ func (m *mockGenesisFetcher) GenesisInfo(_ context.Context) (*ethpb.Genesis, err
 	}, nil
 }
 
-type mockBeaconInfoFetcher struct {
-	endpoint string
-}
-
-func (m *mockBeaconInfoFetcher) BeaconLogsEndpoint(_ context.Context) (string, error) {
-	return m.endpoint, nil
-}
-
 func TestServer_GetBeaconNodeConnection(t *testing.T) {
 	ctx := context.Background()
 	endpoint := "localhost:90210"