RFR: 8185746: Remove Mutex destructor assertion

[Kim Barrett]

> On Aug 2, 2017, at 7:23 PM, David Holmes <david.holmes at oracle.com> wrote:
> 
> Hi Kim,
> 
> On 3/08/2017 8:41 AM, Kim Barrett wrote:
>> Please review this small change to improve the debugging experience
>> when a mutex is destroyed in a bad state.
>> I've removed the assert in ~Mutex, which was making the same checks as
>> in ~Monitor, but providing much less information.
> 
> Okay. Please can you add a comment to the ~Mutex noting that eg:
> 
> // Defer any state checking to ~Monitor
> Mutex::~Mutex() { }

Well, I was waffling over just removing it completely.