Remove ChromeStartupDelegate flag caching

Remove no longer used cached feature flag and variation.

Bug: 1158020
Change-Id: I3c6023ff7d98f38f8b26159025a45160ac7b025e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2587623
Commit-Queue: Theresa  <twellington@chromium.org>
Auto-Submit: Natalie Chouinard <chouinard@chromium.org>
Reviewed-by: Theresa  <twellington@chromium.org>
Cr-Commit-Position: refs/heads/master@{#836860}

chrome/android/java/src/org/chromium/chrome/browser/app/flags/ChromeCachedFlags.java

@@ -13,7 +13,6 @@ import org.chromium.chrome.browser.firstrun.FirstRunUtils;
 import org.chromium.chrome.browser.flags.CachedFeatureFlags;
 import org.chromium.chrome.browser.flags.CachedFieldTrialParameter;
 import org.chromium.chrome.browser.flags.ChromeFeatureList;
-import org.chromium.chrome.browser.init.ChromeStartupDelegate;
 import org.chromium.chrome.browser.tasks.ConditionalTabStripUtils;
 import org.chromium.chrome.browser.tasks.ReturnToChromeExperimentsUtil;
 import org.chromium.chrome.browser.tasks.tab_management.TabUiFeatureUtilities;
@@ -88,7 +87,6 @@ public class ChromeCachedFlags {
         List<CachedFieldTrialParameter> fieldTrialsToCache = Arrays.asList(
                 AppMenuPropertiesDelegateImpl.ACTION_BAR_VARIATION,
                 AppMenuPropertiesDelegateImpl.THREE_BUTTON_ACTION_BAR_VARIATION,
-                ChromeStartupDelegate.ENABLED,
                 ConditionalTabStripUtils.CONDITIONAL_TAB_STRIP_INFOBAR_LIMIT,
                 ConditionalTabStripUtils.CONDITIONAL_TAB_STRIP_INFOBAR_PERIOD,
                 ConditionalTabStripUtils.CONDITIONAL_TAB_STRIP_SESSION_TIME_MS,

chrome/android/java/src/org/chromium/chrome/browser/init/ChromeStartupDelegate.java

@@ -4,17 +4,11 @@
 
 package org.chromium.chrome.browser.init;
 
-import org.chromium.chrome.browser.flags.BooleanCachedFieldTrialParameter;
-import org.chromium.chrome.browser.flags.ChromeFeatureList;
-
 /**
  * Delegate for Chrome startup initialization, implemented downstream.
  */
 public class ChromeStartupDelegate {
     public static final String ENABLED_PARAM = "enabled";
-    public static final BooleanCachedFieldTrialParameter ENABLED =
-            new BooleanCachedFieldTrialParameter(
-                    ChromeFeatureList.CHROME_STARTUP_DELEGATE, ENABLED_PARAM, false);
 
     public void init() {}
 }