Revert "[flutter_tools] move process manager into tool (#75350)" (#75639)

This reverts commit 8b6baae44c8661d548643ced73493e6a66862622.

packages/flutter_tools/lib/src/ios/code_signing.dart

diff --git a/packages/flutter_tools/lib/src/ios/code_signing.dart b/packages/flutter_tools/lib/src/ios/code_signing.dart
index 22e2fce..20708d1 100644
--- a/packages/flutter_tools/lib/src/ios/code_signing.dart
+++ b/packages/flutter_tools/lib/src/ios/code_signing.dart
@@ -5,6 +5,7 @@
 // @dart = 2.8
 
 import 'package:meta/meta.dart';
+import 'package:process/process.dart';
 
 import '../application_package.dart';
 import '../base/common.dart';

packages/flutter_tools/lib/src/ios/devices.dart

diff --git a/packages/flutter_tools/lib/src/ios/devices.dart b/packages/flutter_tools/lib/src/ios/devices.dart
index e29d606..a66f947 100644
--- a/packages/flutter_tools/lib/src/ios/devices.dart
+++ b/packages/flutter_tools/lib/src/ios/devices.dart
@@ -7,6 +7,7 @@
 import 'dart:async';
 
 import 'package:meta/meta.dart';
+import 'package:process/process.dart';
 import 'package:vm_service/vm_service.dart' as vm_service;
 
 import '../application_package.dart';
@@ -16,7 +17,6 @@
 import '../base/logger.dart';
 import '../base/os.dart';
 import '../base/platform.dart';
-import '../base/process.dart';
 import '../base/utils.dart';
 import '../build_info.dart';
 import '../convert.dart';

packages/flutter_tools/lib/src/ios/ios_deploy.dart

diff --git a/packages/flutter_tools/lib/src/ios/ios_deploy.dart b/packages/flutter_tools/lib/src/ios/ios_deploy.dart
index 55c8cec..9980d77 100644
--- a/packages/flutter_tools/lib/src/ios/ios_deploy.dart
+++ b/packages/flutter_tools/lib/src/ios/ios_deploy.dart
@@ -7,6 +7,7 @@
 import 'dart:async';
 
 import 'package:meta/meta.dart';
+import 'package:process/process.dart';
 
 import '../artifacts.dart';
 import '../base/common.dart';

packages/flutter_tools/lib/src/ios/iproxy.dart

diff --git a/packages/flutter_tools/lib/src/ios/iproxy.dart b/packages/flutter_tools/lib/src/ios/iproxy.dart
index e712b6f..6ce9455 100644
--- a/packages/flutter_tools/lib/src/ios/iproxy.dart
+++ b/packages/flutter_tools/lib/src/ios/iproxy.dart
@@ -5,6 +5,7 @@
 // @dart = 2.8
 
 import 'package:meta/meta.dart';
+import 'package:process/process.dart';
 
 import '../base/io.dart';
 import '../base/logger.dart';

packages/flutter_tools/lib/src/ios/mac.dart

diff --git a/packages/flutter_tools/lib/src/ios/mac.dart b/packages/flutter_tools/lib/src/ios/mac.dart
index e4bca0f..9aeaf00 100644
--- a/packages/flutter_tools/lib/src/ios/mac.dart
+++ b/packages/flutter_tools/lib/src/ios/mac.dart
@@ -5,6 +5,7 @@
 // @dart = 2.8
 
 import 'package:meta/meta.dart';
+import 'package:process/process.dart';
 
 import '../application_package.dart';
 import '../artifacts.dart';

packages/flutter_tools/lib/src/ios/plist_parser.dart

diff --git a/packages/flutter_tools/lib/src/ios/plist_parser.dart b/packages/flutter_tools/lib/src/ios/plist_parser.dart
index a3319a9..46efe26 100644
--- a/packages/flutter_tools/lib/src/ios/plist_parser.dart
+++ b/packages/flutter_tools/lib/src/ios/plist_parser.dart
@@ -5,6 +5,7 @@
 // @dart = 2.8
 
 import 'package:meta/meta.dart';
+import 'package:process/process.dart';
 
 import '../base/file_system.dart';
 import '../base/io.dart';

packages/flutter_tools/lib/src/ios/simulators.dart

diff --git a/packages/flutter_tools/lib/src/ios/simulators.dart b/packages/flutter_tools/lib/src/ios/simulators.dart
index 800f4e8..05d4a1d 100644
--- a/packages/flutter_tools/lib/src/ios/simulators.dart
+++ b/packages/flutter_tools/lib/src/ios/simulators.dart
@@ -8,6 +8,7 @@
 import 'dart:math' as math;
 
 import 'package:meta/meta.dart';
+import 'package:process/process.dart';
 
 import '../application_package.dart';
 import '../base/common.dart';

packages/flutter_tools/lib/src/ios/xcodeproj.dart

diff --git a/packages/flutter_tools/lib/src/ios/xcodeproj.dart b/packages/flutter_tools/lib/src/ios/xcodeproj.dart
index 56cb7d7..88d1280 100644
--- a/packages/flutter_tools/lib/src/ios/xcodeproj.dart
+++ b/packages/flutter_tools/lib/src/ios/xcodeproj.dart
@@ -6,6 +6,7 @@
 
 import 'package:file/memory.dart';
 import 'package:meta/meta.dart';
+import 'package:process/process.dart';
 
 import '../artifacts.dart';
 import '../base/common.dart';