gh: remove not used script

Signed-off-by: Alessandro Comodi <acomodi@antmicro.com>

.github/test.sh

diff --git a/.github/test.sh b/.github/test.sh
deleted file mode 100755
index caa6f60..0000000
--- a/.github/test.sh
+++ /dev/null
@@ -1,18 +0,0 @@
-#!/bin/bash
-#
-# Copyright (C) 2020  The SymbiFlow Authors.
-#
-# Use of this source code is governed by a ISC-style
-# license that can be found in the LICENSE file or at
-# https://opensource.org/licenses/ISC
-#
-# SPDX-License-Identifier:	ISC
-
-set -ex
-
-source "$HOME/miniconda/etc/profile.d/conda.sh"
-conda activate yosys-env
-which python
-python --version
-which tox
-tox