Remove token_field_name method from base class

app/models/concerns/token_authenticatable_strategies/base.rb

@@ -65,9 +65,5 @@ module TokenAuthenticatableStrategies
     def token_set?(instance)
       raise NotImplementedError
     end
-
-    def token_field_name
-      @token_field
-    end
   end
 end

app/models/concerns/token_authenticatable_strategies/encrypted.rb

@@ -38,10 +38,10 @@ module TokenAuthenticatableStrategies
     end
 
     def token_set?(instance)
-      token_digest = instance.read_attribute(token_field_name)
-      token_digest ||= instance.read_attribute(@token_field) if @options[:fallback]
+      raw_token = instance.read_attribute(token_field_name)
+      raw_token ||= instance.read_attribute(@token_field) if @options[:fallback]
 
-      token_digest.present?
+      raw_token.present?
     end
 
     def token_field_name