ci: remove unused old ci scripts

(cherry picked from commit 24d17562)

script/cibuild.sh

-#!/bin/sh
-
-set -x
-
-if [ -n "$COVERITY" ]; then
-	./script/coverity.sh
-	exit $?
-fi
-
-if [ "$TRAVIS_OS_NAME" = "osx" ]; then
-	export PKG_CONFIG_PATH=$(ls -d /usr/local/Cellar/{curl,zlib}/*/lib/pkgconfig | paste -s -d':' -)
-
-	# Set up a ramdisk for us to put our test data on to speed up tests on macOS
-	export CLAR_TMP="$HOME"/_clar_tmp
-	mkdir -p $CLAR_TMP
-
-	# 5*2M sectors aka ~5GB of space
-	device=$(hdiutil attach -nomount ram://$((5 * 2 * 1024 * 1024)))
-	newfs_hfs $device
-	mount -t hfs $device $CLAR_TMP
-fi
-
-mkdir _build
-cd _build
-# shellcheck disable=SC2086
-cmake .. -DBUILD_EXAMPLES=ON -DENABLE_WERROR=ON -DCMAKE_INSTALL_PREFIX=../_install $OPTIONS || exit $?
-cmake --build . --target install || exit $?

script/cileaks.sh

-#!/bin/sh
-
-set -x
-
-# If this platform doesn't support test execution, bail out now
-if [ -n "$SKIP_TESTS" ];
-then
-	exit $?
-fi
-
-if [ -n "$VALGRIND" -a -e "$(which valgrind)" ]; then
-	valgrind --leak-check=full --show-reachable=yes --error-exitcode=125 --num-callers=50 --suppressions=./libgit2_clar.supp _build/libgit2_clar $@ -ionline -xbuf::oom
-elif [ -n "$LEAKS" -a -e "$(which leaks)" ]; then
-	MallocStackLogging=1 MallocScribble=1 leaks -atExit -- _build/libgit2_clar -ionline
-fi

script/citest.sh

-#!/bin/sh
-
-set -x
-
-# If this platform doesn't support test execution, bail out now
-if [ -n "$SKIP_TESTS" ]; then
-	exit $?
-fi
-
-if [ ! -d _build ]; then
-	echo "no _build dir found; you should run cibuild.sh first"
-	exit 1
-fi
-cd _build
-
-# Should we ask Travis to cache this file?
-curl -L https://github.com/ethomson/poxyproxy/releases/download/v0.1.0/poxyproxy-0.1.0.jar >poxyproxy.jar || exit $?
-# Run this early so we know it's ready by the time we need it
-java -jar poxyproxy.jar -d --port 8080 --credentials foo:bar &
-
-# Create a test repo which we can use for the online::push tests
-mkdir "$HOME"/_temp
-git init --bare "$HOME"/_temp/test.git
-git daemon --listen=localhost --export-all --enable=receive-pack --base-path="$HOME"/_temp "$HOME"/_temp 2>/dev/null &
-export GITTEST_REMOTE_URL="git://localhost/test.git"
-
-# Run the test suite
-ctest -V -R offline || exit $?
-ctest -V -R online || exit $?
-ctest -V -R gitdaemon || exit $?
-
-# Now that we've tested the raw git protocol, let's set up ssh to we
-# can do the push tests over it
-
-killall git-daemon
-
-# Set up sshd
-mkdir ~/sshd/
-cat >~/sshd/sshd_config<<-EOF
-	Port 2222
-	ListenAddress 0.0.0.0
-	Protocol 2
-	HostKey ${HOME}/sshd/id_rsa
-	PidFile ${HOME}/sshd/pid
-	RSAAuthentication yes
-	PasswordAuthentication yes
-	PubkeyAuthentication yes
-	ChallengeResponseAuthentication no
-	# Required here as sshd will simply close connection otherwise
-	UsePAM no
-EOF
-ssh-keygen -t rsa -f ~/sshd/id_rsa -N "" -q
-/usr/sbin/sshd -f ~/sshd/sshd_config
-
-# Set up keys
-ssh-keygen -t rsa -f ~/.ssh/id_rsa -N "" -q
-cat ~/.ssh/id_rsa.pub >>~/.ssh/authorized_keys
-while read algorithm key comment; do
-	echo "[localhost]:2222 $algorithm $key" >>~/.ssh/known_hosts
-done <~/sshd/id_rsa.pub
-
-# Get the fingerprint for localhost and remove the colons so we can parse it as
-# a hex number. The Mac version is newer so it has a different output format.
-if [ "$TRAVIS_OS_NAME" = "osx" ]; then
-	export GITTEST_REMOTE_SSH_FINGERPRINT=$(ssh-keygen -E md5 -F '[localhost]:2222' -l | tail -n 1 | cut -d ' ' -f 3 | cut -d : -f2- | tr -d :)
-else
-	export GITTEST_REMOTE_SSH_FINGERPRINT=$(ssh-keygen -F '[localhost]:2222' -l | tail -n 1 | cut -d ' ' -f 2 | tr -d ':')
-fi
-
-# Use the SSH server
-export GITTEST_REMOTE_URL="ssh://localhost:2222/$HOME/_temp/test.git"
-export GITTEST_REMOTE_USER=$USER
-export GITTEST_REMOTE_SSH_KEY="$HOME/.ssh/id_rsa"
-export GITTEST_REMOTE_SSH_PUBKEY="$HOME/.ssh/id_rsa.pub"
-export GITTEST_REMOTE_SSH_PASSPHRASE=""
-ctest -V -R ssh || exit $?
-
-# Use the proxy we started at the beginning
-export GITTEST_REMOTE_PROXY_URL="localhost:8080"
-export GITTEST_REMOTE_PROXY_USER="foo"
-export GITTEST_REMOTE_PROXY_PASS="bar"
-ctest -V -R proxy || exit $?
-
-kill $(cat "$HOME/sshd/pid")

script/install-deps-osx.sh

-#!/bin/sh
-
-set -x
-
-brew update
-brew install zlib
-brew install curl
-brew install openssl
-brew install libssh2
-
-ln -s /Applications/Xcode.app/Contents/Developer/usr/lib/libLeaksAtExit.dylib /usr/local/lib