Remove unused field trials from fieldtrial testing config.

testing/variations/fieldtrial_testing_config_win.json

Index: testing/variations/fieldtrial_testing_config_win.json
diff --git a/testing/variations/fieldtrial_testing_config_win.json b/testing/variations/fieldtrial_testing_config_win.json
index 540dbd5981e34bf357b295f1f4e17e3b5ef6529b..21fb0fc5525f510e25edd177183368bcac2ce25a 100644
--- a/testing/variations/fieldtrial_testing_config_win.json
+++ b/testing/variations/fieldtrial_testing_config_win.json
@@ -4,11 +4,6 @@
             "group_name": "Enabled"
         }
     ],
-    "CTRequiredForEVTrial": [
-        {
-            "group_name": "RequirementEnforced"
-        }
-    ],
     "ChildAccountDetection": [
         {
             "group_name": "Disabled"
@@ -59,21 +54,6 @@
             "group_name": "Enabled"
         }
     ],
-    "SHA1IdentityUIWarning": [
-        {
-            "group_name": "Enabled"
-        }
-    ],
-    "SHA1ToolbarUIJanuary2016": [
-        {
-            "group_name": "Warning"
-        }
-    ],
-    "SHA1ToolbarUIJanuary2017": [
-        {
-            "group_name": "Error"
-        }
-    ],
     "SRTPromptFieldTrial": [
         {
             "group_name": "Default"
@@ -84,11 +64,6 @@
             "group_name": "enforce_always_with_extensions_and_dse"
         }
     ],
-    "ShowAppLauncherPromo": [
-        {
-            "group_name": "ShowPromoUntilDismissed"
-        }
-    ],
     "SyncBackingDatabase32K": [
         {
             "group_name": "Enabled"
@@ -96,15 +71,5 @@
         {
             "group_name": "Disabled"
         }
-    ],
-    "UwSInterstitialStatus": [
-        {
-            "group_name": "On"
-        }
-    ],
-    "VoiceTrigger": [
-        {
-            "group_name": "Install"
-        }
     ]
 }