Revert "infra: make cmake-mac-dbg/rel bots no longer experimental"

This reverts commit 2d1a20a65a3ab16386ae0f80427cfc08297cf471.

Reason for revert: Not enough bot capacity to block changes on theses:
https://chromium-swarm.appspot.com/botlist?f=os%3AMac-11&f=cpu%3Ax86-64&f=pool%3Aluci.flex.try


Original change's description:
> infra: make cmake-mac-dbg/rel bots no longer experimental
>
> Bug: dawn:2435
> Change-Id: I35f9d69888c68ccf9e9460aef66972c49035a0aa
> Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/179220
> Reviewed-by: Austin Eng <enga@chromium.org>
> Kokoro: Antonio Maiorano <amaiorano@google.com>

TBR=enga@chromium.org,amaiorano@google.com,noreply+kokoro@google.com

Change-Id: I948bbf7f8496e996b964fdb38eb7d087f98d2b85
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: dawn:2435
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/179103
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Ben Clayton <bclayton@google.com>
Auto-Submit: Ben Clayton <bclayton@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
diff --git a/infra/config/global/generated/commit-queue.cfg b/infra/config/global/generated/commit-queue.cfg
index 71706e6..f9812c6 100644
--- a/infra/config/global/generated/commit-queue.cfg
+++ b/infra/config/global/generated/commit-queue.cfg
@@ -257,6 +257,7 @@
       }
       builders {
         name: "dawn/try/cmake-mac-dbg"
+        experiment_percentage: 100
         location_filters {
           gerrit_host_regexp: ".*"
           gerrit_project_regexp: ".*"
@@ -271,6 +272,7 @@
       }
       builders {
         name: "dawn/try/cmake-mac-rel"
+        experiment_percentage: 100
         location_filters {
           gerrit_host_regexp: ".*"
           gerrit_project_regexp: ".*"
diff --git a/infra/config/global/main.star b/infra/config/global/main.star
index 7ec403c..5c873f1 100755
--- a/infra/config/global/main.star
+++ b/infra/config/global/main.star
@@ -751,8 +751,8 @@
 dawn_cmake_standalone_builder("cmake-linux-clang-rel-x64", clang = True, debug = False, cpu = "x64", asan = False, ubsan = False)
 dawn_cmake_standalone_builder("cmake-linux-clang-rel-x64-asan", clang = True, debug = False, cpu = "x64", asan = True, ubsan = False)
 dawn_cmake_standalone_builder("cmake-linux-clang-rel-x64-ubsan", clang = True, debug = False, cpu = "x64", asan = False, ubsan = True)
-dawn_cmake_standalone_builder("cmake-mac-dbg", clang = True, debug = True, cpu = "x64", asan = False, ubsan = False)
-dawn_cmake_standalone_builder("cmake-mac-rel", clang = True, debug = False, cpu = "x64", asan = False, ubsan = False)
+dawn_cmake_standalone_builder("cmake-mac-dbg", clang = True, debug = True, cpu = "x64", asan = False, ubsan = False, experimental = True)
+dawn_cmake_standalone_builder("cmake-mac-rel", clang = True, debug = False, cpu = "x64", asan = False, ubsan = False, experimental = True)
 dawn_cmake_standalone_builder("cmake-win-msvc-dbg-x64", clang = False, debug = True, cpu = "x64", asan = False, ubsan = False, experimental = True)
 dawn_cmake_standalone_builder("cmake-win-msvc-rel-x64", clang = False, debug = False, cpu = "x64", asan = False, ubsan = False, experimental = True)