Revert of Add CompleteRead to SequencedSocketData and convert all but 3 tests

net/socket/socket_test_util.h

Index: net/socket/socket_test_util.h
diff --git a/net/socket/socket_test_util.h b/net/socket/socket_test_util.h
index 03ca94609ef0acad5607acb3dfe3e461d3826721..b4584ad956384b7ac97d934fd46afb0a433d1087 100644
--- a/net/socket/socket_test_util.h
+++ b/net/socket/socket_test_util.h
@@ -506,9 +506,6 @@
   bool AllReadDataConsumed() const override;
   bool AllWriteDataConsumed() const override;
 
-  bool IsReadPaused();
-  void CompleteRead();
-
  private:
   // Defines the state for the read or write path.
   enum IoState {
@@ -516,9 +513,7 @@
     PENDING,     // An async operation in waiting for another opteration to
                  // complete.
     COMPLETING,  // A task has been posted to complet an async operation.
-    PAUSED,      // IO is paused until CompleteRead() is called.
   };
-
   void OnReadComplete();
   void OnWriteComplete();