Force downgrade Tinkerbell to version without events

To workaround hitting tinkerbell/tink#413.

Signed-off-by: Mateusz Gozdek <[email protected]>

go.mod

@@ -3,28 +3,12 @@ module github.com/tinkerbell/cluster-api-provider-tinkerbell
 go 1.15
 
 require (
-	cloud.google.com/go v0.46.3 // indirect
-	github.com/Microsoft/go-winio v0.4.16 // indirect
-	github.com/briandowns/spinner v1.12.0 // indirect
-	github.com/fatih/color v1.10.0 // indirect
 	github.com/go-logr/logr v0.3.0
-	github.com/golang/mock v1.4.4 // indirect
 	github.com/golang/protobuf v1.4.3 // indirect
-	github.com/google/go-cmp v0.5.2 // indirect
 	github.com/google/uuid v1.1.2
 	github.com/grpc-ecosystem/grpc-gateway v1.16.0 // indirect
-	github.com/kevinburke/ssh_config v0.0.0-20201106050909-4977a11b4351 // indirect
-	github.com/kr/pretty v0.2.0 // indirect
-	github.com/kr/text v0.2.0 // indirect
-	github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e // indirect
 	github.com/onsi/gomega v1.10.1
-	github.com/rubenv/sql-migrate v0.0.0-20200616145509-8d140a17f351 // indirect
-	github.com/spf13/cobra v1.1.1 // indirect
-	github.com/stormcat24/protodep v0.0.0-20201230160338-0c586e80cd16 // indirect
-	github.com/stretchr/testify v1.6.1 // indirect
-	github.com/testcontainers/testcontainers-go v0.9.0 // indirect
-	github.com/tinkerbell/tink v0.0.0-20210104124527-57eb0efb6dbb
-	github.com/xanzy/ssh-agent v0.3.0 // indirect
+	github.com/tinkerbell/tink v0.0.0-20201109122352-0e8e57332303
 	go.uber.org/multierr v1.6.0 // indirect
 	go.uber.org/zap v1.16.0 // indirect
 	golang.org/x/crypto v0.0.0-20201221181555-eec23a3978ad // indirect
@@ -35,9 +19,7 @@ require (
 	google.golang.org/genproto v0.0.0-20201214200347-8c77b98c765d // indirect
 	google.golang.org/grpc v1.33.1
 	google.golang.org/protobuf v1.25.0
-	gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect
-	honnef.co/go/tools v0.0.1-2020.1.4 // indirect
 	k8s.io/api v0.17.16
 	k8s.io/apimachinery v0.17.16
 	k8s.io/client-go v0.17.16