[resultdb][iOS] Re-enable ResultDB on all iOS builders.

As the bug is fixed, enable ResultDB in all iOS builders. This change
reverts crrev/c/2465924, crrev/c/2536932, crrev/c/2551288.

Bug: 1136998
Change-Id: I7cd8f397a51f5d041b932598ead014c3bdc654e2
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2558787Reviewed-by: Chan Li <chanli@chromium.org>
Reviewed-by: Garrett Beaty <gbeaty@chromium.org>
Commit-Queue: Zhaoyang Li <zhaoyangli@chromium.org>
Cr-Commit-Position: refs/heads/master@{#830852}

testing/buildbot/test_suites.pyl

@@ -3618,44 +3618,44 @@
     },
 
     'ios_clang_tests': {
-      'absl_hardening_tests': {'resultdb':{'enable':False}},
-      'base_unittests': {'resultdb':{'enable':False}},
-      'boringssl_crypto_tests': {'resultdb':{'enable':False}},
-      'boringssl_ssl_tests': {'resultdb':{'enable':False}},
-      'components_unittests': {'resultdb':{'enable':False}},
-      'crypto_unittests': {'resultdb':{'enable':False}},
-      'gfx_unittests': {'resultdb':{'enable':False}},
-      'google_apis_unittests': {'resultdb':{'enable':False}},
-      'ios_chrome_unittests': {'resultdb':{'enable':False}},
-      'ios_net_unittests': {'resultdb':{'enable':False}},
-      'ios_web_inttests': {'resultdb':{'enable':False}},
-      'ios_web_unittests': {'resultdb':{'enable':False}},
-      'ios_web_view_inttests': {'resultdb':{'enable':False}},
-      'net_unittests': {'resultdb':{'enable':False}},
-      'skia_unittests': {'resultdb':{'enable':False}},
-      'sql_unittests': {'resultdb':{'enable':False}},
-      'ui_base_unittests': {'resultdb':{'enable':False}},
-      'url_unittests': {'resultdb':{'enable':False}},
+      'absl_hardening_tests': {},
+      'base_unittests': {},
+      'boringssl_crypto_tests': {},
+      'boringssl_ssl_tests': {},
+      'components_unittests': {},
+      'crypto_unittests': {},
+      'gfx_unittests': {},
+      'google_apis_unittests': {},
+      'ios_chrome_unittests': {},
+      'ios_net_unittests': {},
+      'ios_web_inttests': {},
+      'ios_web_unittests': {},
+      'ios_web_view_inttests': {},
+      'net_unittests': {},
+      'skia_unittests': {},
+      'sql_unittests': {},
+      'ui_base_unittests': {},
+      'url_unittests': {},
     },
 
     'ios_common_tests': {
-      'absl_hardening_tests': {'resultdb':{'enable':False}},
-      'boringssl_crypto_tests': {'resultdb':{'enable':False}},
-      'boringssl_ssl_tests': {'resultdb':{'enable':False}},
-      'crypto_unittests': {'resultdb':{'enable':False}},
-      'google_apis_unittests': {'resultdb':{'enable':False}},
-      'ios_components_unittests': {'resultdb':{'enable':False}},
-      'ios_net_unittests': {'resultdb':{'enable':False}},
-      'ios_remoting_unittests': {'resultdb':{'enable':False}},
-      'ios_testing_unittests': {'resultdb':{'enable':False}},
-      'net_unittests': {'resultdb':{'enable':False}},
-      'services_unittests': {'resultdb':{'enable':False}},
-      'sql_unittests': {'resultdb':{'enable':False}},
-      'url_unittests': {'resultdb':{'enable':False}},
+      'absl_hardening_tests': {},
+      'boringssl_crypto_tests': {},
+      'boringssl_ssl_tests': {},
+      'crypto_unittests': {},
+      'google_apis_unittests': {},
+      'ios_components_unittests': {},
+      'ios_net_unittests': {},
+      'ios_remoting_unittests': {},
+      'ios_testing_unittests': {},
+      'net_unittests': {},
+      'services_unittests': {},
+      'sql_unittests': {},
+      'url_unittests': {},
     },
 
     'ios_cronet_tests': {
-      'cronet_test': {'resultdb':{'enable':False}},
+      'cronet_test': {},
     },
 
     'ios_eg2_cq_tests': {
@@ -3663,48 +3663,39 @@
         'swarming': {
           'shards': 3,
         },
-        'resultdb': {
-          'enable': False,
-        },
       },
-      'ios_chrome_signin_eg2tests_module': {'resultdb':{'enable':False}},
+      'ios_chrome_signin_eg2tests_module': {},
       'ios_chrome_ui_eg2tests_module': {
         'swarming': {
           'shards': 5,
         },
-        'resultdb': {
-          'enable': False,
-        },
       },
-      'ios_web_shell_eg2tests_module': {'resultdb':{'enable':False}},
+      'ios_web_shell_eg2tests_module': {},
     },
 
     'ios_eg2_tests': {
-      'ios_chrome_bookmarks_eg2tests_module': {'resultdb':{'enable':False}},
+      'ios_chrome_bookmarks_eg2tests_module': {},
       'ios_chrome_settings_eg2tests_module': {
         'swarming': {
           'shards': 3,
         },
-        'resultdb': {
-          'enable': False,
-        },
       },
-      'ios_chrome_smoke_eg2tests_module': {'resultdb':{'enable':False}},
-      'ios_chrome_web_eg2tests_module': {'resultdb':{'enable':False}},
-      'ios_showcase_eg2tests_module': {'resultdb':{'enable':False}},
+      'ios_chrome_smoke_eg2tests_module': {},
+      'ios_chrome_web_eg2tests_module': {},
+      'ios_showcase_eg2tests_module': {},
     },
 
     'ios_screen_size_dependent_tests': {
-      'base_unittests': {'resultdb':{'enable':False}},
-      'components_unittests': {'resultdb':{'enable':False}},
-      'gfx_unittests': {'resultdb':{'enable':False}},
-      'ios_chrome_unittests': {'resultdb':{'enable':False}},
-      'ios_web_inttests': {'resultdb':{'enable':False}},
-      'ios_web_unittests': {'resultdb':{'enable':False}},
-      'ios_web_view_inttests': {'resultdb':{'enable':False}},
-      'ios_web_view_unittests': {'resultdb':{'enable':False}},
-      'skia_unittests': {'resultdb':{'enable':False}},
-      'ui_base_unittests': {'resultdb':{'enable':False}},
+      'base_unittests': {},
+      'components_unittests': {},
+      'gfx_unittests': {},
+      'ios_chrome_unittests': {},
+      'ios_web_inttests': {},
+      'ios_web_unittests': {},
+      'ios_web_view_inttests': {},
+      'ios_web_view_unittests': {},
+      'skia_unittests': {},
+      'ui_base_unittests': {},
     },
 
     # END tests which run on the GPU bots

testing/buildbot/waterfalls.pyl

@@ -2362,7 +2362,6 @@
       },
       'ios-asan': {
         'mixins': [
-          'enable_resultdb',
           'mac_10.15',
           'mac_toolchain',
           'out_dir_arg',
@@ -2375,7 +2374,6 @@
       },
       'ios-simulator-code-coverage': {
         'mixins': [
-          'enable_resultdb',
           'ios_output_disabled_tests',
           'isolate_profile_data',
           'mac_10.15',
@@ -2403,7 +2401,6 @@
       },
       'ios-simulator-cronet': {
         'mixins': [
-          'enable_resultdb',
           'mac_10.15',
           'mac_toolchain',
           'out_dir_arg',
@@ -2429,7 +2426,6 @@
       },
       'ios-simulator-multi-window': {
         'mixins': [
-          'enable_resultdb',
           'mac_10.15',
           'mac_toolchain',
           'out_dir_arg',
@@ -2442,7 +2438,6 @@
       },
       'ios-webkit-tot': {
         'mixins': [
-          'enable_resultdb',
           'ios_custom_webkit',
           'mac_10.15',
           'mac_toolchain',
@@ -2476,7 +2471,6 @@
           'all',
         ],
         'mixins': [
-          'enable_resultdb',
           'mac_10.15',
           'mac_toolchain',
           'out_dir_arg',
@@ -2494,7 +2488,6 @@
           'all',
         ],
         'mixins': [
-          'enable_resultdb',
           'mac_10.15',
           'mac_toolchain',
           'out_dir_arg',