Remove unused classes and tests.

Old usb pages have been replaced by UsbDetailsFragment
and UsbDefaultFragment. Old connected devices has
been replaced by new connected devices.

Bug: 70848054
Test: Passes
Change-Id: I538cbb88d4f878449a83da9a4a0381e74e840c6a
diff --git a/src/com/android/settings/Settings.java b/src/com/android/settings/Settings.java
index 599d6fb..b543581 100644
--- a/src/com/android/settings/Settings.java
+++ b/src/com/android/settings/Settings.java
@@ -16,10 +16,7 @@
 
 package com.android.settings;
 
-import static com.android.settings.core.FeatureFlags.CONNECTED_DEVICE_V2;
-
 import android.os.Bundle;
-import android.util.FeatureFlagUtils;
 
 import com.android.settings.enterprise.EnterprisePrivacySettings;
 
@@ -157,11 +154,7 @@
 
     // Top level categories for new IA
     public static class NetworkDashboardActivity extends SettingsActivity {}
-    public static class ConnectedDeviceDashboardActivity extends SettingsActivity {
-        public static final boolean isEnabled() {
-            return FeatureFlagUtils.isEnabled(null /* context */, CONNECTED_DEVICE_V2);
-        }
-    }
+    public static class ConnectedDeviceDashboardActivity extends SettingsActivity {}
     public static class ConnectedDeviceDashboardActivityOld extends SettingsActivity {}
     public static class PowerUsageSummaryActivity extends SettingsActivity { /* empty */ }
     public static class PowerUsageSummaryLegacyActivity extends SettingsActivity { /* empty */ }
@@ -169,10 +162,6 @@
     public static class StorageDashboardActivity extends SettingsActivity {}
     public static class AccountDashboardActivity extends SettingsActivity {}
     public static class SystemDashboardActivity extends SettingsActivity {}
-    public static class AdvancedConnectedDeviceActivity extends SettingsActivity {
-        public static final boolean isEnabled() {
-            return FeatureFlagUtils.isEnabled(null /* context */, CONNECTED_DEVICE_V2);
-        }
-    }
+    public static class AdvancedConnectedDeviceActivity extends SettingsActivity {}
 
 }