refactor: remove unused method CDBWrapper::CompactRange

This method hasn't been used since the txindex migration code has been
removed (PR #22626, commit fa20f81).

Co-authored-by: furszy <[email protected]>

Author: theStack

src/dbwrapper.h

@@ -313,22 +313,6 @@ class CDBWrapper
         pdb->GetApproximateSizes(&range, 1, &size);
         return size;
     }
-
-    /**
-     * Compact a certain range of keys in the database.
-     */
-    template<typename K>
-    void CompactRange(const K& key_begin, const K& key_end) const
-    {
-        CDataStream ssKey1(SER_DISK, CLIENT_VERSION), ssKey2(SER_DISK, CLIENT_VERSION);
-        ssKey1.reserve(DBWRAPPER_PREALLOC_KEY_SIZE);
-        ssKey2.reserve(DBWRAPPER_PREALLOC_KEY_SIZE);
-        ssKey1 << key_begin;
-        ssKey2 << key_end;
-        leveldb::Slice slKey1((const char*)ssKey1.data(), ssKey1.size());
-        leveldb::Slice slKey2((const char*)ssKey2.data(), ssKey2.size());
-        pdb->CompactRange(&slKey1, &slKey2);
-    }
 };
 
 #endif // BITCOIN_DBWRAPPER_H