Fix dead code and add missing error check.

Author: maraino

authority/authority.go

@@ -45,6 +45,9 @@ func New(config *Config) (*Authority, error) {
 	var sorted provisionerSlice
 	if config.AuthorityConfig != nil {
 		sorted, err = newSortedProvisioners(config.AuthorityConfig.Provisioners)
+		if err != nil {
+			return nil, err
+		}
 	}
 
 	// Define audiences: legacy + possible urls

authority/provisioner.go

@@ -9,13 +9,6 @@ import (
 	jose "gopkg.in/square/go-jose.v2"
 )
 
-// baseClaims interface.
-type baseClaims struct {
-	MinTLSDur     *duration `json:"minTLSCertDuration,omitempty"`
-	MaxTLSDur     *duration `json:"maxTLSCertDuration,omitempty"`
-	DefaultTLSDur *duration `json:"defaultTLSCertDuration,omitempty"`
-}
-
 // ProvisionerClaims so that individual provisioners can override global claims.
 type ProvisionerClaims struct {
 	globalClaims  *ProvisionerClaims