[testing] Remove superfluous gomega dep (#3063)

Author: maru-ava

go.mod

@@ -31,7 +31,6 @@ require (
 	github.com/mr-tron/base58 v1.2.0
 	github.com/nbutton23/zxcvbn-go v0.0.0-20180912185939-ae427f1e4c1d
 	github.com/onsi/ginkgo/v2 v2.13.1
-	github.com/onsi/gomega v1.29.0
 	github.com/pires/go-proxyproto v0.6.2
 	github.com/prometheus/client_golang v1.14.0
 	github.com/prometheus/client_model v0.3.0
@@ -110,7 +109,6 @@ require (
 	github.com/gogo/protobuf v1.3.2 // indirect
 	github.com/golang/protobuf v1.5.3 // indirect
 	github.com/golang/snappy v0.0.5-0.20220116011046-fa5810519dcb // indirect
-	github.com/google/go-cmp v0.6.0 // indirect
 	github.com/google/pprof v0.0.0-20230207041349-798e818bf904 // indirect
 	github.com/grpc-ecosystem/grpc-gateway/v2 v2.16.0 // indirect
 	github.com/hashicorp/go-bexpr v0.1.10 // indirect

tests/e2e/e2e_test.go

@@ -6,8 +6,6 @@ package e2e_test
 import (
 	"testing"
 
-	"github.com/onsi/gomega"
-
 	// ensure test packages are scanned by ginkgo
 	_ "github.com/ava-labs/avalanchego/tests/e2e/banff"
 	_ "github.com/ava-labs/avalanchego/tests/e2e/c"
@@ -24,7 +22,6 @@ import (
 )
 
 func TestE2E(t *testing.T) {
-	gomega.RegisterFailHandler(ginkgo.Fail)
 	ginkgo.RunSpecs(t, "e2e test suites")
 }
 

tests/upgrade/upgrade_test.go

@@ -9,15 +9,13 @@ import (
 	"testing"
 
 	"github.com/onsi/ginkgo/v2"
-	"github.com/onsi/gomega"
 	"github.com/stretchr/testify/require"
 
 	"github.com/ava-labs/avalanchego/tests/fixture/e2e"
 	"github.com/ava-labs/avalanchego/tests/fixture/tmpnet"
 )
 
 func TestUpgrade(t *testing.T) {
-	gomega.RegisterFailHandler(ginkgo.Fail)
 	ginkgo.RunSpecs(t, "upgrade test suites")
 }