Remove unused coverage tooling

extras/tooling/bin/coverage.dart

@@ -1,72 +0,0 @@
-// Adapted from https://github.com/dart-lang/coverage/blob/master/bin/format_coverage.dart
-// because that file doesn't work with the output of the test package.
-
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'dart:async';
-import 'dart:io';
-
-import 'package:coverage/coverage.dart';
-import 'package:path/path.dart' as p;
-
-// ignore_for_file: avoid_print
-
-final File outputFile = File('lcov.info');
-
-Future<void> main() async {
-  if (outputFile.existsSync()) {
-    outputFile.deleteSync();
-  }
-
-  await runForProject('moor');
-  await runForProject('sqlparser');
-}
-
-Future runForProject(String projectName) async {
-  final files = filesToProcess(projectName);
-  print('$projectName: Collecting across ${files.length} files');
-
-  final hitmap = await parseCoverage(files, 1);
-
-  final resolver = MoorResolver(
-      projectRoot: projectName,
-      packagesPath: p.join(projectName, '.dart_tool', 'package_config.json'));
-
-  final output =
-      await LcovFormatter(resolver, reportOn: [p.join(projectName, 'lib')])
-          .format(hitmap);
-
-  await outputFile.writeAsString(output, mode: FileMode.append);
-}
-
-List<File> filesToProcess(String moorSubproject) {
-  final filePattern = RegExp(r'^.*\.json$');
-  final coverageOutput = p.join(moorSubproject, 'coverage', 'test');
-
-  if (FileSystemEntity.isDirectorySync(coverageOutput)) {
-    return Directory(coverageOutput)
-        .listSync(recursive: true)
-        .whereType<File>()
-        .where((e) => filePattern.hasMatch(p.basename(e.path)))
-        .toList();
-  }
-  throw AssertionError('Moor subproject at $moorSubproject does not exist');
-}
-
-class MoorResolver extends Resolver {
-  final String? projectRoot;
-
-  MoorResolver({this.projectRoot, String? packagesPath})
-      : super(packagesPath: packagesPath);
-
-  @override
-  String? resolveSymbolicLinks(String path) {
-    if (p.isAbsolute(path)) {
-      return super.resolveSymbolicLinks(path);
-    } else {
-      return super.resolveSymbolicLinks(p.join(projectRoot!, path));
-    }
-  }
-}

extras/tooling/pubspec.yaml

@@ -7,5 +7,4 @@ environment:
 
 dependencies:
   analyzer: ^2.5.0
-  coverage: ^1.0.2
   path: ^1.8.0