Stop setting package version attribute in wheels (#12977)

This PR removes modification of the `__init__.py::version` attribute that occurs during the wheel build process. See rapidsai/ops#2592 for more information.

Authors:
  - Vyas Ramasubramani (https://github.com/vyasr)

Approvers:
  - Sevag H (https://github.com/sevagh)

URL: #12977

ci/release/apply_wheel_modifications.sh

@@ -6,12 +6,6 @@
 VERSION=${1}
 CUDA_SUFFIX=${2}
 
-# __init__.py versions
-sed -i "s/__version__ = .*/__version__ = \"${VERSION}\"/g" python/cudf/cudf/__init__.py
-sed -i "s/__version__ = .*/__version__ = \"${VERSION}\"/g" python/dask_cudf/dask_cudf/__init__.py
-sed -i "s/__version__ = .*/__version__ = \"${VERSION}\"/g" python/cudf_kafka/cudf_kafka/__init__.py
-sed -i "s/__version__ = .*/__version__ = \"${VERSION}\"/g" python/custreamz/custreamz/__init__.py
-
 # pyproject.toml versions
 sed -i "s/^version = .*/version = \"${VERSION}\"/g" python/cudf/pyproject.toml
 sed -i "s/^version = .*/version = \"${VERSION}\"/g" python/dask_cudf/pyproject.toml