Revert "MLBEDSW-3645 4D class for op ifm/ofm shapes"

This reverts commit bf31d647dc5df47410ee577b12427ddf076d816b.

Reason for revert: <INSERT REASONING HERE>

Change-Id: I7b6c585b7658f94dbaa916c2b6bfe9fb463b8d37

1 files changed, 0 insertions, 77 deletions

diff --git a/ethosu/vela/shape4d.py b/ethosu/vela/shape4d.py
deleted file mode 100644
index a1b4feaa..00000000
--- a/ethosu/vela/shape4d.py
+++ /dev/null
@@ -1,77 +0,0 @@
-# Copyright (C) 2020 Arm Limited or its affiliates. All rights reserved.
-#
-# SPDX-License-Identifier: Apache-2.0
-#
-# Licensed under the Apache License, Version 2.0 (the License); you may
-# not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an AS IS BASIS, WITHOUT
-# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-# Description:
-# Defines the class Shape4D.
-from .numeric_util import full_shape
-
-
-class Shape4D:
-    """
-    4D Shape (in NHWC format)
-    """
-
-    def __init__(self, shape, base=1):
-        assert shape is not None
-        assert len(shape) <= 4
-        self._shape4D = tuple(full_shape(4, shape, base))
-
-    def __str__(self):
-        return f"<Shape4D {self.as_list()}>"
-
-    def __eq__(self, other):
-        return self._shape4D == other._shape4D
-
-    def clone(self):
-        return Shape4D(self.as_list())
-
-    @property
-    def batch(self):
-        return self._shape4D[0]
-
-    @property
-    def height(self):
-        return self._shape4D[1]
-
-    @property
-    def width(self):
-        return self._shape4D[2]
-
-    @property
-    def depth(self):
-        return self._shape4D[3]
-
-    @batch.setter
-    def batch(self, new_batch):
-        self._shape4D = (new_batch, self._shape4D[1], self._shape4D[2], self._shape4D[3])
-
-    @height.setter
-    def height(self, new_height):
-        self._shape4D = (self._shape4D[0], new_height, self._shape4D[2], self._shape4D[3])
-
-    @width.setter
-    def width(self, new_width):
-        self._shape4D = (self._shape4D[0], self._shape4D[1], new_width, self._shape4D[3])
-
-    @depth.setter
-    def depth(self, new_depth):
-        self._shape4D = (self._shape4D[0], self._shape4D[1], self._shape4D[2], new_depth)
-
-    def get_dim(self, dim):
-        assert -4 <= dim < 4
-        return self._shape4D[dim]
-
-    def as_list(self):
-        return list(self._shape4D)