[ci] Remove ios32 tests (#97385)

Author: Casey Hillers

.ci.yaml

@@ -109,28 +109,6 @@ platform_properties:
       os: Mac-12.0
       device_os: iOS-15.1
       xcode: 13a233
-  mac_ios32:
-    properties:
-      caches: >-
-          [
-            {"name":"builder_mac_devicelab","path":"builder"},
-            {"name":"chrome_and_driver","path":"chrome"},
-            {"name":"flutter_sdk","path":"flutter sdk"},
-            {"name":"gradle","path":"gradle"},
-            {"name":"openjdk","path":"java"},
-            {"name":"pub_cache","path":".pub-cache"},
-            {"name":"xcode_binary","path":"xcode_binary"},
-            {"name":"osx_sdk","path":"osx_sdk"}
-          ]
-      dependencies: >-
-        [
-          {"dependency": "xcode"},
-          {"dependency": "gems"},
-          {"dependency": "ios_signing"}
-        ]
-      os: Mac-12.0
-      device_os: iOS-9.3.6
-      xcode: 13a233
   windows:
     properties:
       caches: >-
@@ -3494,28 +3472,6 @@ targets:
       task_name: tiles_scroll_perf_ios__timeline_summary
     scheduler: luci
 
-  - name: Mac_ios32 flutter_gallery__transition_perf_e2e_ios32
-    recipe: devicelab/devicelab_drone
-    bringup: true
-    presubmit: false
-    timeout: 90
-    properties:
-      tags: >
-        ["devicelab","ios32","mac"]
-      task_name: flutter_gallery__transition_perf_e2e_ios32
-    scheduler: luci
-
-  - name: Mac_ios32 native_ui_tests_ios
-    recipe: devicelab/devicelab_drone
-    bringup: true
-    presubmit: false
-    timeout: 90
-    properties:
-      tags: >
-        ["devicelab","ios32","mac"]
-      task_name: native_ui_tests_ios
-    scheduler: luci
-
   - name: Mac_ios native_ui_tests_ios
     recipe: devicelab/devicelab_drone
     bringup: true # Flaky https://github.com/flutter/flutter/issues/95193

TESTOWNERS

@@ -166,9 +166,6 @@
 /dev/devicelab/bin/tasks/simple_animation_perf_ios.dart @zanderso @flutter/engine
 /dev/devicelab/bin/tasks/tiles_scroll_perf_ios__timeline_summary.dart @zanderso @flutter/engine
 
-## Mac iOS32 DeviceLab tests
-/dev/devicelab/bin/tasks/flutter_gallery__transition_perf_e2e_ios32.dart @zanderso @flutter/engine
-
 ## Host only DeviceLab tests
 /dev/devicelab/bin/tasks/build_aar_module_test.dart @zanderso @flutter/tool
 /dev/devicelab/bin/tasks/gradle_desugar_classes_test.dart @zanderso @flutter/tool