RFR: ZGC: C2: Remove assert in PhaseIdealLoop::split_barrier_thru_phi()

[Per Liden]

Thanks!

/Per

On 05/14/2018 02:49 PM, Nils Eliasson wrote:
> Good,
> 
> // Nils
> 
> 
> On 2018-05-14 13:41, Per Liden wrote:
>> Nils added this assert to be able to catch and further investigate 
>> when this happens. We found a reproducer, so we can remove this now.
>>
>> http://cr.openjdk.java.net/~pliden/zgc/remove_split_phi_assert/webrev.0
>>
>> /Per
>