AssertLockHeld in misc.cpp

Assertion failed: lock cs_wallet not held in ./cc/../wallet/wallet.h:1241; locks held:
cs_main  rpc/misc.cpp:229

the failing code is a disabled lock:
```
//#ifdef ENABLE_WALLET
    //    LOCK2(cs_main, pwalletMain ? &pwalletMain->cs_wallet : NULL);
    //#else
```
