Azure: Stop logging errors during role assignment retry

Presumambly due to eventual consistency on Azure, the role assignment
always needs some retries. Do not log an error for each retry, as that
looks like something went wrong which is not the case.

cmd/infra/azure/create.go

@@ -5,7 +5,6 @@ import (
 	"errors"
 	"fmt"
 	"io/ioutil"
-	"strconv"
 	"strings"
 	"time"
 
@@ -186,14 +185,14 @@ func (o *CreateInfraOptions) Run(ctx context.Context) (*CreateInfraOutput, error
 		return nil, fmt.Errorf("failed to generate uuid for role assignment name: %w", err)
 	}
 
+	log.Log.Info("Assigning role to managed identity, this may take some time")
 	for try := 0; try < 100; try++ {
 		_, err := roleAssignmentClient.Create(ctx, *rg.ID, roleAssignmentName, authorization.RoleAssignmentCreateParameters{RoleAssignmentProperties: &authorization.RoleAssignmentProperties{
 			RoleDefinitionID: roleDefinitions.Values()[0].ID,
 			PrincipalID:      utilpointer.String(identity.PrincipalID.String()),
 		}})
 		if err != nil {
 			if try < 99 {
-				log.Log.Info("Role assignment failed, retrying...", "try", strconv.Itoa(try), "err", err)
 				time.Sleep(time.Second)
 				continue
 			}