Remove v1 runctypes

Signed-off-by: Maksym Pavlenko <pavlenko.maksym@gmail.com>

services/tasks/local_unix.go

@@ -19,11 +19,7 @@
 package tasks
 
 import (
-	"errors"
-
-	"github.com/containerd/containerd/log"
 	"github.com/containerd/containerd/plugin"
-	"github.com/containerd/containerd/runtime"
 )
 
 var tasksServiceRequires = []plugin.Type{
@@ -33,26 +29,3 @@ var tasksServiceRequires = []plugin.Type{
 	plugin.MetadataPlugin,
 	plugin.TaskMonitorPlugin,
 }
-
-func loadV1Runtimes(ic *plugin.InitContext) (map[string]runtime.PlatformRuntime, error) {
-	rt, err := ic.GetByType(plugin.RuntimePlugin)
-	if err != nil {
-		return nil, err
-	}
-
-	runtimes := make(map[string]runtime.PlatformRuntime)
-	for _, rr := range rt {
-		ri, err := rr.Instance()
-		if err != nil {
-			log.G(ic.Context).WithError(err).Warn("could not load runtime instance due to initialization error")
-			continue
-		}
-		r := ri.(runtime.PlatformRuntime)
-		runtimes[r.ID()] = r
-	}
-
-	if len(runtimes) == 0 {
-		return nil, errors.New("no runtimes available to create task service")
-	}
-	return runtimes, nil
-}