Moves realbox and transparency options features in fieldtrial_testing_config

Currently, "NtpRealbox", "NtpRealboxMatchOmniboxTheme", and
"OmniboxSuggestionTransparencyOptions" features are under the study named
"NTPZeroPrefixSuggestions" in fieldtrial_testing_config.json.

This CL moves them under "OmniboxBundledExperimentV1" so they can be found
together with "OmniboxOnFocusSuggestions" as expected by Finch presubmit.

Change-Id: I3aa42d345a70479aa3c92301c4bbf32e594be650
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2073164Reviewed-by: Tommy Li <tommycli@chromium.org>
Reviewed-by: Jesse Doherty <jwd@chromium.org>
Commit-Queue: Moe Ahmadi <mahmadi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#744822}

testing/variations/fieldtrial_testing_config.json

@@ -3229,26 +3229,6 @@
             ]
         }
     ],
-    "NTPZeroPrefixSuggestions": [
-        {
-            "platforms": [
-                "chromeos",
-                "linux",
-                "mac",
-                "windows"
-            ],
-            "experiments": [
-                {
-                    "name": "Enabled",
-                    "enable_features": [
-                        "NtpRealbox",
-                        "NtpRealboxMatchOmniboxTheme",
-                        "OmniboxSuggestionTransparencyOptions"
-                    ]
-                }
-            ]
-        }
-    ],
     "NativeNotifications": [
         {
             "platforms": [
@@ -3513,6 +3493,8 @@
                         "ZeroSuggestVariant:7:*": "RemoteNoUrl,Local"
                     },
                     "enable_features": [
+                        "NtpRealbox",
+                        "NtpRealboxMatchOmniboxTheme",
                         "OmniboxDisplayTitleForCurrentUrl",
                         "OmniboxDocumentProvider",
                         "OmniboxEnableClipboardProviderTextSuggestions",
@@ -3521,6 +3503,7 @@
                         "OmniboxOnFocusSuggestions",
                         "OmniboxRemoveSuggestionsFromClipboard",
                         "OmniboxRichEntitySuggestions",
+                        "OmniboxSuggestionTransparencyOptions",
                         "OmniboxUIExperimentMaxAutocompleteMatches",
                         "QueryInOmnibox"
                     ]