Remove unused using declaration from gen_h1 #249

	name: CI

	on:
	push:
	branches:
	- master
	pull_request:
	branches:
	- master

	jobs:
	run:
	runs-on: ${{ matrix.os }}

	strategy:
	fail-fast: false
	matrix:
	os: [ubuntu-latest]
	# Python doesn't matter, conda had been built only with 3.8.5
	python-version: ["3.8"]

	steps:
	- uses: actions/checkout@v2
	- name: Set up Python ${{ matrix.python-version }} (Miniconda)
	uses: conda-incubator/setup-miniconda@v2
	with:
	auto-update-conda: true
	python-version: ${{ matrix.python-version }}

	- name: Conda info
	shell: bash -l {0}
	run: conda info

	- name: "Init conda"
	shell: bash -l {0}
	run: \|
	conda init bash

	- name: Conda install dependencies
	shell: bash -l {0}
	run: \|
	conda create -n root-nightly -y -c https://root.cern/download/conda-nightly/latest -c conda-forge root-nightly cmake pytest pytest-benchmark pytest-csv numpy numba

	- name: Configure and build
	shell: bash -l {0}
	run: \|
	conda activate root-nightly
	mkdir -p build && cd build
	cmake -Dcuda=OFF ..
	cmake --build .

	- name: Run benchmarks
	shell: bash -l {0}
	run: \|
	conda activate root-nightly
	export PYTHONHOME=$CONDA
	export RB_TEMP_FS=.
	cd build
	ctest -V

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