Disable TabSearch feature

chrome/browser/ui/ui_features.cc

@@ -111,7 +111,7 @@ const base::Feature kTabOutlinesInLowContrastThemes{
 // TODO(crbug.com/1137558): Remove this after launch to the remaining desktop
 // platforms.
 #if BUILDFLAG(IS_CHROMEOS_ASH)
-const base::Feature kTabSearch{"TabSearch", base::FEATURE_ENABLED_BY_DEFAULT};
+const base::Feature kTabSearch{"TabSearch", base::FEATURE_DISABLED_BY_DEFAULT};
 #else
 const base::Feature kTabSearch{"TabSearch", base::FEATURE_DISABLED_BY_DEFAULT};
 #endif  // BUILDFLAG(IS_CHROMEOS_ASH)

testing/variations/fieldtrial_testing_config.json

@@ -6402,24 +6402,6 @@
             ]
         }
     ],
-    "TabSearch": [
-        {
-            "platforms": [
-                "chromeos",
-                "linux",
-                "mac",
-                "windows"
-            ],
-            "experiments": [
-                {
-                    "name": "Enabled",
-                    "enable_features": [
-                        "TabSearch"
-                    ]
-                }
-            ]
-        }
-    ],
     "TabToGTSAnimation": [
         {
             "platforms": [