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/ReshapeOptions.py b/ethosu/vela/tflite/ReshapeOptions.py
index 204fa69..157d45d 100644
--- a/ethosu/vela/tflite/ReshapeOptions.py
+++ b/ethosu/vela/tflite/ReshapeOptions.py
@@ -3,27 +3,17 @@
 # namespace: tflite
 
 import flatbuffers
-from flatbuffers.compat import import_numpy
-np = import_numpy()
 
 class ReshapeOptions(object):
     __slots__ = ['_tab']
 
     @classmethod
-    def GetRootAs(cls, buf, offset=0):
+    def GetRootAsReshapeOptions(cls, buf, offset):
         n = flatbuffers.encode.Get(flatbuffers.packer.uoffset, buf, offset)
         x = ReshapeOptions()
         x.Init(buf, n + offset)
         return x
 
-    @classmethod
-    def GetRootAsReshapeOptions(cls, buf, offset=0):
-        """This method is deprecated. Please switch to GetRootAs."""
-        return cls.GetRootAs(buf, offset)
-    @classmethod
-    def ReshapeOptionsBufferHasIdentifier(cls, buf, offset, size_prefixed=False):
-        return flatbuffers.util.BufferHasIdentifier(buf, offset, b"\x54\x46\x4C\x33", size_prefixed=size_prefixed)
-
     # ReshapeOptions
     def Init(self, buf, pos):
         self._tab = flatbuffers.table.Table(buf, pos)
@@ -50,24 +40,7 @@
             return self._tab.VectorLen(o)
         return 0
 
-    # ReshapeOptions
-    def NewShapeIsNone(self):
-        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(4))
-        return o == 0
-
-def Start(builder): builder.StartObject(1)
-def ReshapeOptionsStart(builder):
-    """This method is deprecated. Please switch to Start."""
-    return Start(builder)
-def AddNewShape(builder, newShape): builder.PrependUOffsetTRelativeSlot(0, flatbuffers.number_types.UOffsetTFlags.py_type(newShape), 0)
-def ReshapeOptionsAddNewShape(builder, newShape):
-    """This method is deprecated. Please switch to AddNewShape."""
-    return AddNewShape(builder, newShape)
-def StartNewShapeVector(builder, numElems): return builder.StartVector(4, numElems, 4)
-def ReshapeOptionsStartNewShapeVector(builder, numElems):
-    """This method is deprecated. Please switch to Start."""
-    return StartNewShapeVector(builder, numElems)
-def End(builder): return builder.EndObject()
-def ReshapeOptionsEnd(builder):
-    """This method is deprecated. Please switch to End."""
-    return End(builder)
\ No newline at end of file
+def ReshapeOptionsStart(builder): builder.StartObject(1)
+def ReshapeOptionsAddNewShape(builder, newShape): builder.PrependUOffsetTRelativeSlot(0, flatbuffers.number_types.UOffsetTFlags.py_type(newShape), 0)
+def ReshapeOptionsStartNewShapeVector(builder, numElems): return builder.StartVector(4, numElems, 4)
+def ReshapeOptionsEnd(builder): return builder.EndObject()