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/SVDFOptions.py b/ethosu/vela/tflite/SVDFOptions.py
index 3b45b6a..e4b3461 100644
--- a/ethosu/vela/tflite/SVDFOptions.py
+++ b/ethosu/vela/tflite/SVDFOptions.py
@@ -3,27 +3,17 @@
 # namespace: tflite
 
 import flatbuffers
-from flatbuffers.compat import import_numpy
-np = import_numpy()
 
 class SVDFOptions(object):
     __slots__ = ['_tab']
 
     @classmethod
-    def GetRootAs(cls, buf, offset=0):
+    def GetRootAsSVDFOptions(cls, buf, offset):
         n = flatbuffers.encode.Get(flatbuffers.packer.uoffset, buf, offset)
         x = SVDFOptions()
         x.Init(buf, n + offset)
         return x
 
-    @classmethod
-    def GetRootAsSVDFOptions(cls, buf, offset=0):
-        """This method is deprecated. Please switch to GetRootAs."""
-        return cls.GetRootAs(buf, offset)
-    @classmethod
-    def SVDFOptionsBufferHasIdentifier(cls, buf, offset, size_prefixed=False):
-        return flatbuffers.util.BufferHasIdentifier(buf, offset, b"\x54\x46\x4C\x33", size_prefixed=size_prefixed)
-
     # SVDFOptions
     def Init(self, buf, pos):
         self._tab = flatbuffers.table.Table(buf, pos)
@@ -49,23 +39,8 @@
             return bool(self._tab.Get(flatbuffers.number_types.BoolFlags, o + self._tab.Pos))
         return False
 
-def Start(builder): builder.StartObject(3)
-def SVDFOptionsStart(builder):
-    """This method is deprecated. Please switch to Start."""
-    return Start(builder)
-def AddRank(builder, rank): builder.PrependInt32Slot(0, rank, 0)
-def SVDFOptionsAddRank(builder, rank):
-    """This method is deprecated. Please switch to AddRank."""
-    return AddRank(builder, rank)
-def AddFusedActivationFunction(builder, fusedActivationFunction): builder.PrependInt8Slot(1, fusedActivationFunction, 0)
-def SVDFOptionsAddFusedActivationFunction(builder, fusedActivationFunction):
-    """This method is deprecated. Please switch to AddFusedActivationFunction."""
-    return AddFusedActivationFunction(builder, fusedActivationFunction)
-def AddAsymmetricQuantizeInputs(builder, asymmetricQuantizeInputs): builder.PrependBoolSlot(2, asymmetricQuantizeInputs, 0)
-def SVDFOptionsAddAsymmetricQuantizeInputs(builder, asymmetricQuantizeInputs):
-    """This method is deprecated. Please switch to AddAsymmetricQuantizeInputs."""
-    return AddAsymmetricQuantizeInputs(builder, asymmetricQuantizeInputs)
-def End(builder): return builder.EndObject()
-def SVDFOptionsEnd(builder):
-    """This method is deprecated. Please switch to End."""
-    return End(builder)
\ No newline at end of file
+def SVDFOptionsStart(builder): builder.StartObject(3)
+def SVDFOptionsAddRank(builder, rank): builder.PrependInt32Slot(0, rank, 0)
+def SVDFOptionsAddFusedActivationFunction(builder, fusedActivationFunction): builder.PrependInt8Slot(1, fusedActivationFunction, 0)
+def SVDFOptionsAddAsymmetricQuantizeInputs(builder, asymmetricQuantizeInputs): builder.PrependBoolSlot(2, asymmetricQuantizeInputs, 0)
+def SVDFOptionsEnd(builder): return builder.EndObject()