Remove SendPortSync and ReceivePortSync.

sdk/lib/isolate/isolate.dart

Index: sdk/lib/isolate/isolate.dart
diff --git a/sdk/lib/isolate/isolate.dart b/sdk/lib/isolate/isolate.dart
index fef7ff4bb928bdfd1140de0a287b58046dec3bf4..f7d1aed49d58ada4fac609ea1b8b4c77051f7521 100644
--- a/sdk/lib/isolate/isolate.dart
+++ b/sdk/lib/isolate/isolate.dart
@@ -206,35 +206,6 @@ abstract class RawReceivePort {
 }
 
 /**
- * [SendPortSync]s are created from [ReceivePortSync]s. Any message sent through
- * a [SendPortSync] is delivered to its respective [ReceivePortSync]. There
- * might be many [SendPortSync]s for the same [ReceivePortSync].
- *
- * [SendPortSync]s can be transmitted to other isolates.
- *
- * *DEPRECATED*.
- */
-@deprecated
-abstract class SendPortSync {
-  /**
-   * Sends a synchronous message to this send port and returns the result.
-   */
-  callSync(var message);
-
-  /**
-   * Tests whether [other] is a [SendPortSync] pointing to the same
-   * [ReceivePortSync] as this one.
-   */
-  bool operator==(var other);
-
-  /**
-   * Returns an immutable hash code for this send port that is
-   * consistent with the == operator.
-   */
-  int get hashCode;
-}
-
-/**
  * Wraps unhandled exceptions thrown during isolate execution. It is
  * used to show both the error message and the stack trace for unhandled
  * exceptions.