remove ephemeral files (#70818)

packages/integration_test/example/.gitignore

@@ -22,52 +22,25 @@
 
 # Flutter/Dart/Pub related
 **/doc/api/
+**/ios/Flutter/.last_build_id
 .dart_tool/
 .flutter-plugins
+.flutter-plugins-dependencies
 .packages
 .pub-cache/
 .pub/
 /build/
 
-# Android related
-**/android/**/gradle-wrapper.jar
-**/android/.gradle
-**/android/captures/
-**/android/gradlew
-**/android/gradlew.bat
-**/android/local.properties
-**/android/**/GeneratedPluginRegistrant.java
+# Web related
+lib/generated_plugin_registrant.dart
 
-# iOS/XCode related
-**/ios/**/*.mode1v3
-**/ios/**/*.mode2v3
-**/ios/**/*.moved-aside
-**/ios/**/*.pbxuser
-**/ios/**/*.perspectivev3
-**/ios/**/*sync/
-**/ios/**/.sconsign.dblite
-**/ios/**/.tags*
-**/ios/**/.vagrant/
-**/ios/**/DerivedData/
-**/ios/**/Icon?
-**/ios/**/Pods/
-**/ios/**/.symlinks/
-**/ios/**/profile
-**/ios/**/xcuserdata
-**/ios/.generated/
-**/ios/Flutter/App.framework
-**/ios/Flutter/Flutter.framework
-**/ios/Flutter/Generated.xcconfig
-**/ios/Flutter/app.flx
-**/ios/Flutter/app.zip
-**/ios/Flutter/flutter_assets/
-**/ios/Flutter/flutter_export_environment.sh
-**/ios/ServiceDefinitions.json
-**/ios/Runner/GeneratedPluginRegistrant.*
+# Symbolication related
+app.*.symbols
 
-# Exceptions to above rules.
-!**/ios/**/default.mode1v3
-!**/ios/**/default.mode2v3
-!**/ios/**/default.pbxuser
-!**/ios/**/default.perspectivev3
-!/packages/flutter_tools/test/data/dart_dependencies_test/**/.packages
+# Obfuscation related
+app.*.map.json
+
+# Android Studio will place build artifacts here
+/android/app/debug
+/android/app/profile
+/android/app/release

packages/integration_test/example/android/.gitignore

+gradle-wrapper.jar
+/.gradle
+/captures/
+/gradlew
+/gradlew.bat
+/local.properties
+GeneratedPluginRegistrant.java
+
+# Remember to never publicly share your keystore.
+# See https://flutter.dev/docs/deployment/android#reference-the-keystore-from-the-app
+key.properties

packages/integration_test/example/ios/.gitignore

+*.mode1v3
+*.mode2v3
+*.moved-aside
+*.pbxuser
+*.perspectivev3
+**/*sync/
+.sconsign.dblite
+.tags*
+**/.vagrant/
+**/DerivedData/
+Icon?
+**/Pods/
+**/.symlinks/
+profile
+xcuserdata
+**/.generated/
+Flutter/App.framework
+Flutter/Flutter.framework
+Flutter/Flutter.podspec
+Flutter/Generated.xcconfig
+Flutter/app.flx
+Flutter/app.zip
+Flutter/flutter_assets/
+Flutter/flutter_export_environment.sh
+ServiceDefinitions.json
+Runner/GeneratedPluginRegistrant.*
+
+# Exceptions to above rules.
+!default.mode1v3
+!default.mode2v3
+!default.pbxuser
+!default.perspectivev3

packages/integration_test/example/macos/.gitignore

+# Flutter-related
+**/Flutter/ephemeral/
+**/Pods/
+
+# Xcode-related
+**/xcuserdata/

packages/integration_test/example/macos/Flutter/ephemeral/Flutter-Generated.xcconfig

-// This is a generated file; do not edit or check into version control.
-FLUTTER_ROOT=/Users/dnfield/src/flutter/flutter
-FLUTTER_APPLICATION_PATH=/Users/dnfield/src/flutter/flutter/packages/integration_test/example
-FLUTTER_BUILD_DIR=build
-FLUTTER_FRAMEWORK_DIR=/Users/dnfield/src/flutter/flutter/bin/cache/artifacts/engine/darwin-x64
-FLUTTER_BUILD_NAME=1.0.0
-FLUTTER_BUILD_NUMBER=1
-DART_OBFUSCATION=false
-TRACK_WIDGET_CREATION=false
-TREE_SHAKE_ICONS=false
-PACKAGE_CONFIG=.packages

packages/integration_test/example/macos/Flutter/ephemeral/flutter_export_environment.sh

-#!/bin/sh
-# This is a generated file; do not edit or check into version control.
-export "FLUTTER_ROOT=/Users/dnfield/src/flutter/flutter"
-export "FLUTTER_APPLICATION_PATH=/Users/dnfield/src/flutter/flutter/packages/integration_test/example"
-export "FLUTTER_BUILD_DIR=build"
-export "FLUTTER_FRAMEWORK_DIR=/Users/dnfield/src/flutter/flutter/bin/cache/artifacts/engine/darwin-x64"
-export "FLUTTER_BUILD_NAME=1.0.0"
-export "FLUTTER_BUILD_NUMBER=1"
-export "DART_OBFUSCATION=false"
-export "TRACK_WIDGET_CREATION=false"
-export "TREE_SHAKE_ICONS=false"
-export "PACKAGE_CONFIG=.packages"