[CIR] Remove the NYI test case for a pointer-element vector (#223019)
#222736 removed CIR_AnyPtrType from VectorElementType, so `!cir.vector<2
x !cir.ptr<!s32i>>` no longer verifies. That stops
x86_64-aggregate-nyi.cir parsing at all, so the whole test fails rather
than just that case.
The case only pinned that the x86_64 bridge refuses the shape. No C or
C++ source produces it, since clang rejects a pointer element with
"invalid vector element type", so the verifier is the earlier and better
place for that rejection. The comment in isSupportedType justifying the
bridge-side exclusion is also removed.
Assisted-by: Cursor / claude-opus-5