Remove unused import, correct indention.

pkg/costmodel/cluster.go

@@ -7,8 +7,7 @@ import (
 	"time"
 
 	"github.com/kubecost/cost-model/pkg/cloud"
-  "github.com/kubecost/cost-model/pkg/errors"
-	"github.com/kubecost/cost-model/pkg/log"
+	"github.com/kubecost/cost-model/pkg/errors"
 	"github.com/kubecost/cost-model/pkg/prom"
 	"github.com/kubecost/cost-model/pkg/util"
 	prometheus "github.com/prometheus/client_golang/api"