Fix PDisk config is being overwritten (#8388)

Author: SammyVimes

ydb/core/blobstorage/nodewarden/node_warden_pdisk.cpp

@@ -125,8 +125,6 @@ namespace NKikimr::NStorage {
             pdiskConfig->HashedMainKey[i] = TStringBuilder() << Hex(hasher.GetHashResult(), HF_ADDX);
         }
 
-        pdiskConfig->Initialize();
-
         return pdiskConfig;
     }