[clang] [analyzer] Don't display the offset value in underflows (PR #98621)

[Donát Nagy via cfe-commits]

NagyDonat wrote:

_(Technical detail: I'll be on vacation during the next week, so I won't see updates on this PR until the 22nd of July. If you want to merge this PR, feel free to do so, but don't forget to adjust the description and the title to accurately reflect the current state of the PR.)_ 

https://github.com/llvm/llvm-project/pull/98621