[cleanup] Remove `run_fuchsia_tests.sh`. (#85586)

Remove `//dev/bots/run_fuchsia_tests.sh` as there are no longer any references to it.

Migrating tests to cfv2 will be easier if we don't have to account for this script.

See https://fxbug.dev/79691.

dev/bots/run_fuchsia_tests.sh

-#!/usr/bin/env bash
-# Copyright 2014 The Flutter Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-# This script has been adapted from:
-# https://github.com/flutter/engine/blob/master/testing/fuchsia/run_tests.sh
-# Any modifications made to this file might be applicable there as well.
-
-# This expects the device to be in zedboot mode, with a zedboot that is
-# is compatible with the Fuchsia system image provided.
-#
-# The first and only parameter should be the path to the Fuchsia system image
-# tarball, e.g. `./run_fuchsia_tests.sh generic-x64.tgz`.
-#
-# This script expects `pm`, `ffx`, and `fuchsia_ctl` to all be in the
-# same directory as the script.
-#
-# This script also expects a private key available at:
-# "/etc/botanist/keys/id_rsa_infra".
-
-set -Eex
-
-script_dir=$(dirname "$(readlink -f "$0")")
-
-# Bot key to pave and ssh the device.
-pkey="/etc/botanist/keys/id_rsa_infra"
-
-# This is longer than the test timeout as dumping the
-# logs can sometimes take longer.
-ssh_timeout_seconds=360
-
-# The nodes are named blah-blah--four-word-fuchsia-id
-device_name=${SWARMING_BOT_ID#*--}
-
-if [ -z "$device_name" ]
-then
-  echo "No device found. Aborting."
-  exit 1
-else
-  echo "Connecting to device $device_name"
-fi
-
-# Wrapper function to pass common args to fuchsia_ctl.
-fuchsia_ctl() {
-  $script_dir/fuchsia_ctl -d $device_name \
-      --ffx-path $script_dir/ffx "$@"
-}
-
-reboot() {
-  echo "$(date) START:DEVICE_LOGS ------------------------------------------"
-  fuchsia_ctl ssh \
-      --timeout-seconds $ssh_timeout_seconds \
-      --identity-file $pkey \
-      -c "log_listener --dump_logs yes --file /tmp/log.txt"
-  # As we are not using recipes we don't have a way to know the location
-  # to upload the log to isolated. We are saving the log to a file to avoid dart
-  # hanging when running the process and then just using printing the content to
-  # the console.
-  fuchsia_ctl ssh \
-       --timeout-seconds $ssh_timeout_seconds \
-       --identity-file $pkey \
-       -c "cat /tmp/log.txt"
-  echo "$(date) END:DEVICE_LOGS ------------------------------------------"
-  echo "$(date) START:REBOOT ------------------------------------------"
-  # note: this will set an exit code of 255, which we can ignore.
-  fuchsia_ctl ssh \
-      --identity-file $pkey \
-      -c "dm reboot-recovery" || true
-  echo "$(date) END:REBOOT --------------------------------------------"
-}
-
-trap reboot EXIT
-
-echo "$(date) START:PAVING ------------------------------------------"
-ssh-keygen -y -f $pkey > key.pub
-fuchsia_ctl pave -i $1 --public-key "key.pub"
-echo "$(date) END:PAVING --------------------------------------------"
-
-echo "$(date) START:WAIT_DEVICE_READY -------------------------------"
-for i in {1..10}; do
-  fuchsia_ctl ssh \
-      --identity-file $pkey \
-      -c "echo up" && break || sleep 15;
-done
-echo "$(date) END:WAIT_DEVICE_READY ---------------------------------"
-
-echo "$(date) START:PUSH_PACKAGES -------------------------------"
-fuchsia_ctl push-packages \
-    --identity-file $pkey \
-    --repoArchive generic-x64.tar.gz \
-    -p tiles -p tiles_ctl
-echo "$(date) END:PUSH_PACKAGES ---------------------------------"
-
-# set fuchsia ssh config
-cat > $script_dir/fuchsia_ssh_config << EOF
-Host *
-  CheckHostIP no
-  StrictHostKeyChecking no
-  ForwardAgent no
-  ForwardX11 no
-  GSSAPIDelegateCredentials no
-  UserKnownHostsFile /dev/null
-  User fuchsia
-  IdentitiesOnly yes
-  IdentityFile $pkey
-  ControlPersist yes
-  ControlMaster auto
-  ControlPath /tmp/fuchsia--%r@%h:%p
-  ConnectTimeout 10
-  ServerAliveInterval 1
-  ServerAliveCountMax 10
-  LogLevel ERROR
-EOF
-
-export FUCHSIA_SSH_CONFIG=$script_dir/fuchsia_ssh_config
-
-export FUCHSIA_ANALYTICS_DISABLED="1"
-
-# Run the driver test
-echo "$(date) START:DRIVER_TEST -------------------------------------"
-flutter_dir=$script_dir/flutter
-flutter_bin=$flutter_dir/bin/flutter
-
-# remove all out dated .packages references
-find $flutter_dir -name ".packages" | xargs rm
-cd $flutter_dir/dev/benchmarks/test_apps/stocks/
-$flutter_bin pub get
-$flutter_bin drive -v -d $device_name --target=test_driver/stock_view.dart
-echo "$(date) END:DRIVER_TEST ---------------------------------------"