Remove duplicate of anySatisfy implementation

[edi33416]

druntime's core.internal.traits.anySatisfy is a copy of the same code. This PR removes the code duplication and the required double maintenance of anySatisfy.

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[nordlow]

I presume that the druntime versions of these traits will use my recent additions to anySatisfy and allSatisfy making them iterative and thereby faster and less memory hungry via static foreach.

[n8sh]

@nordlow Yup: dlang/druntime#2338

[n8sh]

Approved per #6761 (review)