chore(Deploy): remove obsolete files

[sofisl]

This PR removes obsolete structural files for Deploy that are no longer generated.

Testing Deletions

I attempted to load the deleted classes to prove they do not exist anymore.

Test Script:

<?php
require 'vendor/autoload.php';
echo "Testing deleted classes for Deploy...\n";
$success = true;
if (class_exists('Google\Cloud\Deploy\V1\\Range') || interface_exists('Google\Cloud\Deploy\V1\\Range') || trait_exists('Google\Cloud\Deploy\V1\\Range')) {
    echo "ERROR: Google\Cloud\Deploy\V1\\Range still exists!\n";
    $success = false;
} else {
    echo "SUCCESS: Google\Cloud\Deploy\V1\\Range does not exist.\n";
}
if (class_exists('Google\Cloud\Deploy\V1\\RepairMode') || interface_exists('Google\Cloud\Deploy\V1\\RepairMode') || trait_exists('Google\Cloud\Deploy\V1\\RepairMode')) {
    echo "ERROR: Google\Cloud\Deploy\V1\\RepairMode still exists!\n";
    $success = false;
} else {
    echo "SUCCESS: Google\Cloud\Deploy\V1\\RepairMode does not exist.\n";
}
if (class_exists('Google\Cloud\Deploy\V1\\RestrictRollout') || interface_exists('Google\Cloud\Deploy\V1\\RestrictRollout') || trait_exists('Google\Cloud\Deploy\V1\\RestrictRollout')) {
    echo "ERROR: Google\Cloud\Deploy\V1\\RestrictRollout still exists!\n";
    $success = false;
} else {
    echo "SUCCESS: Google\Cloud\Deploy\V1\\RestrictRollout does not exist.\n";
}
if (class_exists('Google\Cloud\Deploy\V1\RestrictRollout\\Actions') || interface_exists('Google\Cloud\Deploy\V1\RestrictRollout\\Actions') || trait_exists('Google\Cloud\Deploy\V1\RestrictRollout\\Actions')) {
    echo "ERROR: Google\Cloud\Deploy\V1\RestrictRollout\\Actions still exists!\n";
    $success = false;
} else {
    echo "SUCCESS: Google\Cloud\Deploy\V1\RestrictRollout\\Actions does not exist.\n";
}
if (class_exists('Google\Cloud\Deploy\V1\\TimeWindow') || interface_exists('Google\Cloud\Deploy\V1\\TimeWindow') || trait_exists('Google\Cloud\Deploy\V1\\TimeWindow')) {
    echo "ERROR: Google\Cloud\Deploy\V1\\TimeWindow still exists!\n";
    $success = false;
} else {
    echo "SUCCESS: Google\Cloud\Deploy\V1\\TimeWindow does not exist.\n";
}
if (!$success) exit(1);

Output:

Testing deleted classes for Deploy...
SUCCESS: Google\Cloud\Deploy\V1\Range does not exist.
SUCCESS: Google\Cloud\Deploy\V1\RepairMode does not exist.
SUCCESS: Google\Cloud\Deploy\V1\RestrictRollout does not exist.
SUCCESS: Google\Cloud\Deploy\V1\RestrictRollout\Actions does not exist.
SUCCESS: Google\Cloud\Deploy\V1\TimeWindow does not exist.

BREAKING_CHANGE_REASON=In google-cloud-php PR #7553, the cloud_deploy.proto was synced which removed the RepairMode message. OwlBot failed to delete this orphaned file.

For googleapis/librarian#7366