Remove Git pre-commit hook

Since generated files are no longer stored in the repository, they
don't need to be up-to-date before committing.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>

tests/git-scripts/pre-commit.sh

@@ -1,34 +0,0 @@
-#!/bin/sh
-
-# pre-commit.sh
-#
-# Copyright The Mbed TLS Contributors
-# 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
-#
-# http://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.
-
-# Purpose
-#
-# This script does quick sanity checks before commiting:
-#   - check that generated files are up-to-date.
-#
-# It is meant to be called as a git pre-commit hook, see README.md.
-#
-# From the git sample pre-commit hook:
-#   Called by "git commit" with no arguments.  The hook should
-#   exit with non-zero status after issuing an appropriate message if
-#   it wants to stop the commit.
-
-set -eu
-
-tests/scripts/check-generated-files.sh