Inline an empty destructor (#9004)

Summary:
Pull Request resolved: https://github.com/facebook/rocksdb/pull/9004

Inline an empty destructor

Reviewed By: ltamasi

Differential Revision: D31525561

fbshipit-source-id: 3b9e37f06b0c70529a5d2d660de21ea335c73611

utilities/transactions/lock/point/point_lock_manager.cc

@@ -114,8 +114,6 @@ PointLockManager::PointLockManager(PessimisticTransactionDB* txn_db,
                          ? opt.custom_mutex_factory
                          : std::make_shared<TransactionDBMutexFactoryImpl>()) {}
 
-PointLockManager::~PointLockManager() {}
-
 size_t LockMap::GetStripe(const std::string& key) const {
   assert(num_stripes_ > 0);
   return FastRange64(GetSliceNPHash64(key), num_stripes_);

utilities/transactions/lock/point/point_lock_manager.h

@@ -115,7 +115,7 @@ class PointLockManager : public LockManager {
   PointLockManager(const PointLockManager&) = delete;
   PointLockManager& operator=(const PointLockManager&) = delete;
 
-  ~PointLockManager() override;
+  ~PointLockManager() override {}
 
   bool IsPointLockSupported() const override { return true; }