Remove analyze --dartdocs flag (#80484)

diff --git a/dev/bots/analyze.dart b/dev/bots/analyze.dart
index b39c24d..a32f80d 100644
--- a/dev/bots/analyze.dart
+++ b/dev/bots/analyze.dart

@@ -1197,7 +1197,7 @@
 }) async {
   return runCommand(
     flutter,
-    <String>['analyze', '--dartdocs', ...options],
+    <String>['analyze', ...options],
     workingDirectory: workingDirectory,
   );
 }

diff --git a/dev/devicelab/bin/tasks/dartdocs.dart b/dev/devicelab/bin/tasks/dartdocs.dart
index a505cd2..0bb2d20 100644
--- a/dev/devicelab/bin/tasks/dartdocs.dart
+++ b/dev/devicelab/bin/tasks/dartdocs.dart

@@ -2,70 +2,13 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-import 'dart:convert';
-import 'dart:io';
-
 import 'package:flutter_devicelab/framework/framework.dart';
 import 'package:flutter_devicelab/framework/task_result.dart';
-import 'package:flutter_devicelab/framework/utils.dart';
-import 'package:path/path.dart' as path;
 
 Future<void> main() async {
-  final String dot = Platform.isWindows ? '-' : '•';
-  await flutter('update-packages');
   await task(() async {
-    final Stopwatch clock = Stopwatch()..start();
-    final Process analysis = await startProcess(
-      path.join(flutterDirectory.path, 'bin', 'flutter'),
-      <String>['analyze', '--no-preamble', '--flutter-repo', '--dartdocs'],
-      workingDirectory: flutterDirectory.path,
-    );
-    int publicMembers = 0;
-    int otherErrors = 0;
-    int otherLines = 0;
-    bool sawFinalLine = false;
-    await for (String entry in analysis.stdout.transform<String>(utf8.decoder).transform<String>(const LineSplitter())) {
-      entry = entry.trim();
-      print('analyzer stdout: $entry');
-      if (entry == 'Building flutter tool...') {
-        // ignore this line
-      } else if (entry.startsWith('info $dot Document all public members $dot')) {
-        publicMembers += 1;
-      } else if (entry.startsWith('info $dot') || entry.startsWith('warning $dot') || entry.startsWith('error $dot')) {
-        otherErrors += 1;
-      } else if (entry.contains(' (ran in ') && !sawFinalLine) {
-        // ignore this line once
-        sawFinalLine = true;
-      } else if (entry.isNotEmpty) {
-        otherLines += 1;
-        print('^ not sure what to do with that line ^');
-      }
-    }
-    await for (final String entry in analysis.stderr.transform<String>(utf8.decoder).transform<String>(const LineSplitter())) {
-      print('analyzer stderr: $entry');
-      if (entry.contains(' (ran in ') && !sawFinalLine) {
-        // ignore this line once
-        sawFinalLine = true;
-      } else {
-        otherLines += 1;
-        print('^ not sure what to do with that line ^');
-      }
-    }
-    final int result = await analysis.exitCode;
-    clock.stop();
-    if (!sawFinalLine)
-      throw Exception('flutter analyze did not output final message');
-    if (publicMembers == 0 && otherErrors == 0 && result != 0)
-      throw Exception('flutter analyze exited with unexpected error code $result');
-    if (publicMembers != 0 && otherErrors != 0 && result == 0)
-      throw Exception('flutter analyze exited with successful status code despite reporting errors');
-    if (otherLines != 0)
-      throw Exception('flutter analyze had unexpected output (we saw $otherLines unexpected line${ otherLines == 1 ? "" : "s" })');
-    final Map<String, dynamic> data = <String, dynamic>{
-      'members_missing_dartdocs': publicMembers,
-      'analysis_errors': otherErrors,
-      'elapsed_time_ms': clock.elapsedMilliseconds,
-    };
-    return TaskResult.success(data, benchmarkScoreKeys: data.keys.toList());
+    // TODO(jmagman): Remove once dartdocs builder can be deleted
+    // when https://github.com/flutter/flutter/issues/79798 rolls to stable.
+    return TaskResult.success(null);
   });
 }

diff --git a/dev/prod_builders.json b/dev/prod_builders.json
index 31a1193..dcb03b1 100644
--- a/dev/prod_builders.json
+++ b/dev/prod_builders.json

@@ -115,12 +115,6 @@
       "flaky": false
     },
     {
-      "name": "Linux dartdocs",
-      "repo": "flutter",
-      "task_name": "linux_dartdocs",
-      "flaky": false
-    },
-    {
       "name": "Linux docs_test",
       "repo": "flutter",
       "task_name": "linux_docs_test",