US 194-314 32.5.7.5p2 [atomics.ref.pointer] Make this a full specialization, not a partial one

[wg21bot]

This should be a full specialization rather than a partial one.

Proposed change:

Strike “class T”. Also delete “partial” from the subclause title.

[jensmaurer]

Incomplete application of https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2024/p3323r1.html and editorial fix to subclause title.

[jensmaurer]

Accepted.