Revert reversion of TensorFlow 2.9 update

With the errors caused by the previous TensorFlow 2.9 update
being fixed, we can proceed with the upgrade.

Signed-off-by: erik.andersson@arm.com <erik.andersson@arm.com>
Change-Id: Ie1f025e8d984efaebc68b8d051126d49bee6b2b8
diff --git a/ethosu/vela/tflite/ReverseSequenceOptions.py b/ethosu/vela/tflite/ReverseSequenceOptions.py
index e4b0028..cbaf96d 100644
--- a/ethosu/vela/tflite/ReverseSequenceOptions.py
+++ b/ethosu/vela/tflite/ReverseSequenceOptions.py
@@ -3,27 +3,17 @@
 # namespace: tflite
 
 import flatbuffers
-from flatbuffers.compat import import_numpy
-np = import_numpy()
 
 class ReverseSequenceOptions(object):
     __slots__ = ['_tab']
 
     @classmethod
-    def GetRootAs(cls, buf, offset=0):
+    def GetRootAsReverseSequenceOptions(cls, buf, offset):
         n = flatbuffers.encode.Get(flatbuffers.packer.uoffset, buf, offset)
         x = ReverseSequenceOptions()
         x.Init(buf, n + offset)
         return x
 
-    @classmethod
-    def GetRootAsReverseSequenceOptions(cls, buf, offset=0):
-        """This method is deprecated. Please switch to GetRootAs."""
-        return cls.GetRootAs(buf, offset)
-    @classmethod
-    def ReverseSequenceOptionsBufferHasIdentifier(cls, buf, offset, size_prefixed=False):
-        return flatbuffers.util.BufferHasIdentifier(buf, offset, b"\x54\x46\x4C\x33", size_prefixed=size_prefixed)
-
     # ReverseSequenceOptions
     def Init(self, buf, pos):
         self._tab = flatbuffers.table.Table(buf, pos)
@@ -42,19 +32,7 @@
             return self._tab.Get(flatbuffers.number_types.Int32Flags, o + self._tab.Pos)
         return 0
 
-def Start(builder): builder.StartObject(2)
-def ReverseSequenceOptionsStart(builder):
-    """This method is deprecated. Please switch to Start."""
-    return Start(builder)
-def AddSeqDim(builder, seqDim): builder.PrependInt32Slot(0, seqDim, 0)
-def ReverseSequenceOptionsAddSeqDim(builder, seqDim):
-    """This method is deprecated. Please switch to AddSeqDim."""
-    return AddSeqDim(builder, seqDim)
-def AddBatchDim(builder, batchDim): builder.PrependInt32Slot(1, batchDim, 0)
-def ReverseSequenceOptionsAddBatchDim(builder, batchDim):
-    """This method is deprecated. Please switch to AddBatchDim."""
-    return AddBatchDim(builder, batchDim)
-def End(builder): return builder.EndObject()
-def ReverseSequenceOptionsEnd(builder):
-    """This method is deprecated. Please switch to End."""
-    return End(builder)
\ No newline at end of file
+def ReverseSequenceOptionsStart(builder): builder.StartObject(2)
+def ReverseSequenceOptionsAddSeqDim(builder, seqDim): builder.PrependInt32Slot(0, seqDim, 0)
+def ReverseSequenceOptionsAddBatchDim(builder, batchDim): builder.PrependInt32Slot(1, batchDim, 0)
+def ReverseSequenceOptionsEnd(builder): return builder.EndObject()