[clang] [CIR][NFC] Remove Covered MissingFeatures flags for Complex (PR #158425)

[Henrich Lauko via cfe-commits]

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@@ -1754,9 +1754,6 @@ LogicalResult cir::BinOp::verify() {
     return emitError() << "The nsw/nuw flags and the saturated flag are "
                           "mutually exclusive";
 
-  assert(!cir::MissingFeatures::complexType());
-  // TODO(cir): verify for complex binops
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xlauko wrote:

Is this TODO covered?

https://github.com/llvm/llvm-project/pull/158425