[ios] Only build ios_remoting_unittests

The ios bots are only interested in running ios_remoting_unittests,
so in order to avoid breaking when //ios/{web,chrome} requires new
version of Xcode, set `ios_build_chrome=false` to stop building
those targets (as they are not run/tested since they don't depend
on WebRTC).

Bug: webrtc:13222
Change-Id: Ib08044157d7ee9ea44a3c608310609cad99665b1
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/233620
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Commit-Queue: Sylvain Defresne <sdefresne@chromium.org>
Cr-Commit-Position: refs/heads/main@{#35256}
diff --git a/tools_webrtc/mb/mb_config.pyl b/tools_webrtc/mb/mb_config.pyl
index 084085c..8461b16 100644
--- a/tools_webrtc/mb/mb_config.pyl
+++ b/tools_webrtc/mb/mb_config.pyl
@@ -356,26 +356,30 @@
     # iOS
     'ios_debug_bot_arm64': [
       'ios', 'debug_bot', 'arm64', 'no_ios_code_signing', 'ios_use_goma_rbe',
-      'xctest',
+      'xctest', 'ios_no_chrome',
     ],
     'ios_release_bot_arm64': [
       'ios', 'release_bot', 'arm64', 'no_ios_code_signing', 'ios_use_goma_rbe',
-      'xctest',
+      'xctest', 'ios_no_chrome',
     ],
     'ios_internal_debug_bot_arm64': [
       'ios', 'debug_bot', 'arm64', 'ios_use_goma_rbe',
       'ios_code_signing_identity_description', 'xctest',
+      'ios_no_chrome',
     ],
     'ios_internal_release_bot_arm64': [
       'ios', 'release_bot', 'arm64', 'ios_use_goma_rbe',
       'ios_code_signing_identity_description', 'xctest',
+      'ios_no_chrome',
     ],
     'ios_internal_pure_release_bot_arm64': [
       'ios', 'pure_release_bot', 'arm64', 'ios_use_goma_rbe',
       'ios_code_signing_identity_description', 'xctest',
+      'ios_no_chrome',
     ],
     'ios_debug_bot_x64': [
       'ios', 'debug_bot', 'x64', 'ios_use_goma_rbe', 'xctest',
+      'ios_no_chrome',
     ],
 
     # More configs
@@ -463,6 +467,10 @@
       'gn_args': 'ios_code_signing_identity_description="Apple Development"',
     },
 
+    'ios_no_chrome': {
+      'gn_args': 'ios_build_chrome=false',
+    },
+
     'ios_use_goma_rbe': {
       'gn_args': 'ios_use_goma_rbe=true',
     },