[cr148][Android] Move SigninManagerImpl to signin.services target

Chromium change:
https://source.chromium.org/chromium/chromium/src/+/737d3e35abb1641430e6aed3f1b9d7bac36fd9c1

commit 737d3e35abb1641430e6aed3f1b9d7bac36fd9c1
Author: Liza Bipin <mlbipin@google.com>
Date:   Thu Mar 12 03:02:24 2026 -0700

    [Signin][Android] Move SigninManagerImpl to signin.services target

    Fixed: 40163288
    Bypass-Check-License: Files were moved and so contain an older licence date.
    Change-Id: I99d2710096ce9e918995038d9834038adba28048
    Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/7633764
    Reviewed-by: Menghan Yang <myuu@google.com>
    Commit-Queue: Liza Bipin <mlbipin@google.com>
    Cr-Commit-Position: refs/heads/main@{#1598309}

android/java/org/chromium/chrome/browser/signin/BraveSigninManager.java

@@ -1,129 +0,0 @@
-/* Copyright (c) 2019 The Brave Authors. All rights reserved.
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this file,
- * You can obtain one at https://mozilla.org/MPL/2.0/. */
-
-package org.chromium.chrome.browser.signin;
-
-import androidx.annotation.MainThread;
-
-import org.jni_zero.CalledByNative;
-import org.jni_zero.JniType;
-
-import org.chromium.base.Callback;
-import org.chromium.build.annotations.NullMarked;
-import org.chromium.build.annotations.Nullable;
-import org.chromium.chrome.browser.signin.services.SigninManager;
-import org.chromium.components.prefs.PrefService;
-import org.chromium.components.signin.base.CoreAccountInfo;
-import org.chromium.components.signin.identitymanager.IdentityManager;
-import org.chromium.components.signin.identitymanager.IdentityMutator;
-import org.chromium.components.signin.metrics.SigninAccessPoint;
-import org.chromium.components.signin.metrics.SignoutReason;
-
-@NullMarked
-public class BraveSigninManager implements SigninManager {
-    private final IdentityManager mIdentityManager;
-
-    BraveSigninManager(IdentityManager identityManager) {
-        mIdentityManager = identityManager;
-    }
-
-    @Override
-    public boolean isSigninAllowed() {
-        return false;
-    }
-
-    @Override
-    public boolean isSignOutAllowed() {
-        return false;
-    }
-
-    @Override
-    public boolean isSigninSupported(boolean requireUpdatedPlayServices) {
-        return false;
-    }
-
-    @Override
-    public String getManagementDomain() {
-        return "";
-    }
-
-    @Override
-    public void signOut(
-            @SignoutReason int signoutSource,
-            @Nullable SignOutCallback signOutCallback,
-            boolean forceWipeUserData) {}
-
-    @Override
-    @MainThread
-    public void runAfterOperationInProgress(Runnable runnable) {}
-
-    @Override
-    public void removeSignInStateObserver(SignInStateObserver observer) {}
-
-    @Override
-    public void addSignInStateObserver(SignInStateObserver observer) {}
-
-    @Override
-    public boolean isForceSigninEnabled() {
-        return false;
-    }
-
-    @Override
-    public IdentityManager getIdentityManager() {
-        return mIdentityManager;
-    }
-
-    @Override
-    public String extractDomainName(String accountEmail) {
-        return "";
-    }
-
-    @CalledByNative
-    static SigninManager create(
-            long nativeSigninManagerAndroid,
-            @JniType("PrefService*") PrefService prefService,
-            @JniType("signin::IdentityManager*") IdentityManager identityManager,
-            IdentityMutator identityMutator) {
-        return new BraveSigninManager(identityManager);
-    }
-
-    @CalledByNative
-    void destroy() {}
-
-    @Override
-    public void wipeSyncUserData(Runnable wipeDataCallback, @DataWipeOption int dataWipeOption) {}
-
-    @Override
-    public void revokeSyncConsent(
-            @SignoutReason int signoutSource,
-            @Nullable SignOutCallback signOutCallback,
-            boolean forceWipeUserData) {}
-
-    @Override
-    public void signin(
-            CoreAccountInfo coreAccountInfo,
-            @SigninAccessPoint int accessPoint,
-            @Nullable SignInCallback callback) {}
-
-    @Deprecated
-    public void turnOnSyncForTesting(
-            CoreAccountInfo coreAccountInfo, @SigninAccessPoint int accessPoint) {}
-
-    @Override
-    public boolean getUserAcceptedAccountManagement() {
-        return false;
-    }
-
-    @Override
-    public void setUserAcceptedAccountManagement(boolean acceptedAccountManagement) {}
-
-    @Override
-    public void isAccountManaged(CoreAccountInfo account, final Callback<Boolean> callback) {}
-
-    @Override
-    public boolean didAccountFetchSucceed() {
-        return false;
-    }
-}