[omnibox] remove params which will not be used in on device head
suggest Incognito feature launch.

Note we intended to share these params across non-Incognito & Incognito
features, but now find out this is not supported by Finch.

Bug: 925072
Change-Id: Ib43e8f4f6cc3124871beb7c68aa47b42bef1d480
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2346691
Reviewed-by: Justin Donnelly <[email protected]>
Commit-Queue: Ce Chen <[email protected]>
Cr-Commit-Position: refs/heads/master@{#797070}
diff --git a/chrome/browser/about_flags.cc b/chrome/browser/about_flags.cc
index a9922427..e1a3522c 100644
--- a/chrome/browser/about_flags.cc
+++ b/chrome/browser/about_flags.cc
@@ -1831,16 +1831,6 @@
 #endif  // OS_ANDROID
 
 const FeatureEntry::FeatureVariation
-    kOmniboxOnDeviceHeadSuggestIncognitoExperimentVariations[] = {{
-        "relevance-1000",
-        (FeatureEntry::FeatureParam[]){
-            {OmniboxFieldTrial::kOnDeviceHeadSuggestMaxScoreForNonUrlInput,
-             "1000"}},
-        1,
-        nullptr,
-    }};
-
-const FeatureEntry::FeatureVariation
     kOmniboxOnDeviceHeadSuggestNonIncognitoExperimentVariations[] = {
         {
             "relevance-1000",
@@ -3689,11 +3679,7 @@
     {"omnibox-on-device-head-suggestions-incognito",
      flag_descriptions::kOmniboxOnDeviceHeadSuggestionsIncognitoName,
      flag_descriptions::kOmniboxOnDeviceHeadSuggestionsIncognitoDescription,
-     kOsAll,
-     FEATURE_WITH_PARAMS_VALUE_TYPE(
-         omnibox::kOnDeviceHeadProviderIncognito,
-         kOmniboxOnDeviceHeadSuggestIncognitoExperimentVariations,
-         "OmniboxOnDeviceHeadSuggestIncognito")},
+     kOsAll, FEATURE_VALUE_TYPE(omnibox::kOnDeviceHeadProviderIncognito)},
 
     {"omnibox-on-device-head-suggestions-non-incognito",
      flag_descriptions::kOmniboxOnDeviceHeadSuggestionsNonIncognitoName,