fix(mobile-next): 移除悬浮窗申请与位置发送，通话文案改为语音通话

同步完成后不再索取 SYSTEM_ALERT_WINDOW，去掉旧浮窗服务声明和定位权限/发送入口；历史位置消息仍只读展示。

Co-authored-by: Cursor <cursoragent@cursor.com>
Co-authored-by: multica-agent <github@multica.ai>

mobile-next/lib/pages/chat/chat_view.dart

@@ -247,7 +247,6 @@ class ChatPage extends StatelessWidget {
                       onTapCall: FeatureFlags.livekitCall && logic.isSingleChat ? logic.call : null,
                       onTapCard: logic.onTapCarte,
                       onTapFile: logic.onTapFile,
-                      onTapLocation: logic.onTapLocation,
                     ),
                     voiceRecordBar: bar,
                     emojiView: ChatEmojiView(