[lacros] Remove all experimental flags from lacros FYI builder

This mainly gives me the ability to use resultdb to do some analysis
because experimental steps are not stored. crbug.com/1115614.

Bug: 1111979
Change-Id: Ie185dadc54d36ec6d2815652290806f477fb0298
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2505726Reviewed-by: Yuke Liao <liaoyuke@chromium.org>
Commit-Queue: Sven Zheng <svenzheng@chromium.org>
Cr-Commit-Position: refs/heads/master@{#822021}

testing/buildbot/chromium.fyi.json

@@ -58111,7 +58111,6 @@
         "test_id_prefix": "ninja://third_party/boringssl:boringssl_ssl_tests/"
       },
       {
-        "experiment_percentage": 100,
         "merge": {
           "args": [],
           "script": "//testing/merge_scripts/standard_gtest_merge.py"
@@ -58242,7 +58241,6 @@
         "test_id_prefix": "ninja://components:components_browsertests/"
       },
       {
-        "experiment_percentage": 100,
         "merge": {
           "args": [],
           "script": "//testing/merge_scripts/standard_gtest_merge.py"
@@ -58302,7 +58300,6 @@
         "args": [
           "--enable-features=StorageServiceOutOfProcess"
         ],
-        "experiment_percentage": 100,
         "merge": {
           "args": [],
           "script": "//testing/merge_scripts/standard_gtest_merge.py"
@@ -58431,7 +58428,6 @@
         "test_id_prefix": "ninja://ui/events:events_unittests/"
       },
       {
-        "experiment_percentage": 100,
         "merge": {
           "args": [],
           "script": "//testing/merge_scripts/standard_gtest_merge.py"
@@ -58453,7 +58449,6 @@
         "args": [
           "--enable-features=StorageServiceOutOfProcess"
         ],
-        "experiment_percentage": 100,
         "merge": {
           "args": [],
           "script": "//testing/merge_scripts/standard_gtest_merge.py"
@@ -58473,7 +58468,6 @@
         "test_id_prefix": "ninja://extensions:extensions_browsertests/"
       },
       {
-        "experiment_percentage": 100,
         "merge": {
           "args": [],
           "script": "//testing/merge_scripts/standard_gtest_merge.py"
@@ -58618,7 +58612,6 @@
         "test_id_prefix": "ninja://components/gwp_asan:gwp_asan_unittests/"
       },
       {
-        "experiment_percentage": 100,
         "merge": {
           "args": [],
           "script": "//testing/merge_scripts/standard_gtest_merge.py"
@@ -58641,7 +58634,6 @@
         "args": [
           "--enable-features=StorageServiceOutOfProcess"
         ],
-        "experiment_percentage": 100,
         "merge": {
           "args": [],
           "script": "//testing/merge_scripts/standard_gtest_merge.py"
@@ -59184,7 +59176,6 @@
         "test_id_prefix": "ninja://storage:storage_unittests/"
       },
       {
-        "experiment_percentage": 100,
         "merge": {
           "args": [],
           "script": "//testing/merge_scripts/standard_gtest_merge.py"
@@ -59257,7 +59248,6 @@
         "test_id_prefix": "ninja://ui/touch_selection:ui_touch_selection_unittests/"
       },
       {
-        "experiment_percentage": 100,
         "merge": {
           "args": [],
           "script": "//testing/merge_scripts/standard_gtest_merge.py"
@@ -59294,7 +59284,6 @@
         "test_id_prefix": "ninja://url:url_unittests/"
       },
       {
-        "experiment_percentage": 100,
         "merge": {
           "args": [],
           "script": "//testing/merge_scripts/standard_gtest_merge.py"

testing/buildbot/test_suite_exceptions.pyl

@@ -636,9 +636,6 @@
           '--test-launcher-filter-file=../../testing/buildbot/filters/lacros.browser_tests.filter',
         ],
       },
-      'linux-lacros-tester-fyi-rel': {
-        'experiment_percentage': 100,
-      },
       'linux-lacros-tester-rel': {
         'args': [
           '--test-launcher-filter-file=../../testing/buildbot/filters/lacros.browser_tests.filter',
@@ -965,10 +962,6 @@
         ],
       },
       # https://crbug.com/1111979,
-      'linux-lacros-tester-fyi-rel': {
-        'experiment_percentage': 100,
-      },
-      # https://crbug.com/1111979,
       'linux-lacros-tester-rel': {
         'args': [
           '--gtest_filter=-NetExportFileWriterTest*',
@@ -1275,10 +1268,6 @@
       'Win10 Tests x64 (dbg)': {
         'experiment_percentage': 100, # https://crbug.com/876615
       },
-      # https://crbug.com/1111979
-      'linux-lacros-tester-fyi-rel': {
-        'experiment_percentage': 100,
-      },
       # https://crbug.com/1111979,
       'linux-lacros-tester-rel': {
         'args': [
@@ -1288,11 +1277,7 @@
     },
   },
   'extensions_unittests': {
-    # https://crbug.com/1111979
     'modifications': {
-      'linux-lacros-tester-fyi-rel': {
-        'experiment_percentage': 100,
-      },
       # https://crbug.com/1111979,
       'linux-lacros-tester-rel': {
         'args': [
@@ -1591,10 +1576,6 @@
         ],
       },
       # https://crbug.com/1111979
-      'linux-lacros-tester-fyi-rel': {
-        'experiment_percentage': 100,
-      },
-      # https://crbug.com/1111979
       'linux-lacros-tester-rel': {
         'args': [
           '--test-launcher-filter-file=../../testing/buildbot/filters/lacros.interactive_ui_tests.filter',
@@ -2521,10 +2502,6 @@
           'shards': 6,
         },
       },
-      # https://crbug.com/1111979
-      'linux-lacros-tester-fyi-rel': {
-        'experiment_percentage': 100,
-      },
       # https://crbug.com/1111979,
       'linux-lacros-tester-rel': {
         'experiment_percentage': 100,
@@ -2539,10 +2516,6 @@
   },
   'storage_service_extensions_browsertests': {
     'modifications': {
-      # https://crbug.com/1111979
-      'linux-lacros-tester-fyi-rel': {
-        'experiment_percentage': 100,
-      },
       # https://crbug.com/1111979,
       'linux-lacros-tester-rel': {
         'args': [
@@ -2562,10 +2535,6 @@
           '--gtest_filter=-SadTabViewInteractiveUITest.ReloadMultipleSadTabs',
         ],
       },
-      # https://crbug.com/1111979
-      'linux-lacros-tester-fyi-rel': {
-        'experiment_percentage': 100,
-      },
     }
   },
   'swiftshader_unittests': {
@@ -2621,10 +2590,6 @@
           'shards': 4,
         },
       },
-      # https://crbug.com/1111979
-      'linux-lacros-tester-fyi-rel': {
-        'experiment_percentage': 100,
-      },
       # https://crbug.com/1111979,
       'linux-lacros-tester-rel': {
         'args': [
@@ -2823,10 +2788,6 @@
           '--test-launcher-filter-file=../../testing/buildbot/filters/lacros.unit_tests.filter',
         ],
       },
-      # https://crbug.com/1111979
-      'linux-lacros-tester-fyi-rel': {
-        'experiment_percentage': 100,
-      },
       # https://crbug.com/1111979,
       'linux-lacros-tester-rel': {
         'args': [
@@ -2853,10 +2814,6 @@
   },
   'views_unittests': {
     'modifications': {
-      # https://crbug.com/1111979
-      'linux-lacros-tester-fyi-rel': {
-        'experiment_percentage': 100,
-      },
       # https://crbug.com/1111979,
       'linux-lacros-tester-rel': {
         'args': [