With JDK-8373134 fixed, and JDK-8374896 shortly to be fixed, the following section in `PhaseIterGVN::verify_Identity_for` can now be removed:

```
    // MaxNode::find_identity_operation
    // Finds patterns like Max(A, Max(A, B)) -> Max(A, B)
    // This can be a 2-hop search, so maybe notification is not
    // good enough.
    //
    // Found with:
    // compiler/codegen/TestBooleanVect.java
    // -XX:VerifyIterativeGVN=1110
    case Op_MaxL:
    case Op_MinL:
    case Op_MaxI:
    case Op_MinI:
    case Op_MaxF:
    case Op_MinF:
    case Op_MaxHF:
    case Op_MinHF:
    case Op_MaxD:
    case Op_MinD:
      return;
```

To be specific, the fix in JDK-8373134 already made compiler/codegen/TestBooleanVect.java with verify iterative gvn pass, but it was decided to leave removing this section out of the original PR due to JDK-8374896 (see https://github.com/openjdk/jdk/pull/28895#issuecomment-3737207951).

So, once JDK-8374896 is fixed, removing this section can go ahead.