Revert proto file to base branch state (was inadvertently changed by downloadProtoFiles)

Agent-Logs-Url: https://github.com/microsoft/durabletask-java/sessions/6c71e4a3-6ba6-4f7c-b5fb-038b059128d0

Co-authored-by: bachuv <15795068+bachuv@users.noreply.github.com>

Author: Copilot

internal/durabletask-protobuf/protos/orchestrator_service.proto

@@ -25,7 +25,6 @@ message ActivityRequest {
     OrchestrationInstance orchestrationInstance = 4;
     int32 taskId = 5;
     TraceContext parentTraceContext = 6;
-    map<string, string> tags = 7;
 }
 
 message ActivityResponse {
@@ -321,10 +320,6 @@ message SendEntityMessageAction {
     }
 }
 
-message RewindOrchestrationAction {
-    repeated HistoryEvent newHistory = 1;
-}
-
 message OrchestratorAction {
     int32 id = 1;
     oneof orchestratorActionType {
@@ -335,7 +330,6 @@ message OrchestratorAction {
         CompleteOrchestrationAction completeOrchestration = 6;
         TerminateOrchestrationAction terminateOrchestration = 7;
         SendEntityMessageAction sendEntityMessage = 8;
-        RewindOrchestrationAction rewindOrchestration = 9;
     }
 }
 
@@ -523,7 +517,6 @@ message PurgeInstanceFilter {
     google.protobuf.Timestamp createdTimeFrom = 1;
     google.protobuf.Timestamp createdTimeTo = 2;
     repeated OrchestrationStatus runtimeStatus = 3;
-    google.protobuf.Duration timeout = 4;
 }
 
 message PurgeInstancesResponse {