proto: remove ttl from ZoneData

easytier/src/proto/dns.proto

@@ -7,9 +7,8 @@ package dns;
 message ZoneData {
   common.UUID id = 1;
   string origin = 2;
-  uint32 ttl = 3;
-  repeated string records = 4;
-  repeated common.Url forwarders = 5;
+  repeated string records = 3;
+  repeated common.Url forwarders = 4;
 }
 
 message GetExportConfigRequest {}

easytier/src/proto/dns.rs

@@ -22,10 +22,6 @@ impl Display for ZoneData {
         }
         writeln!(f)?;
 
-        writeln!(f, "$TTL {}", self.ttl)?;
-
-        writeln!(f)?;
-
         for record in &self.records {
             writeln!(f, "{}", record)?;
         }