"Dead Store Elimination" is unable to eliminate built-in memset functions

Version and Platform (required):

• Binary Ninja Version: 3.6.4802-dev, 87e27dc3
• OS: Windows
• OS Version: 11
• CPU Architecture: x86_64

Bug Description:
In the example below, s is actually a class that is being initialized but not used afterward due to compiler optimizations applied to the binary. IDA automatically removes that code block. However, I like the ability to view that code initially and then eliminate it myself, as it might helps me notice other code present in the binary.

However, when I try to eliminate it myself, this is the result I got:

Notice the typeless var_30_51 variable. So, while I successfully removed much of the unused code, this built-in memset function stubbornly remains.

Steps To Reproduce:

1. Download and open attached binary
2. Go to 00401223
3. Try to eliminate the s variable

Expected Behavior:
Personally, I don't care much if this code isn't automatically eliminated (although having the option would be nice 😄), but I would like the ability to remove the built-in memset with dead store elimination.

Additional Information:
class_test.zip

Open the attached class_test.zip binary and reproduce the issue at 00401223 by applying Dead Store Elimination to the s variable. Inspect why the built-in memset remains as typeless var_30_51, and verify that the elimination can remove it without affecting the surrounding decompilation.