[clang] [analyzer] Disable graph-trim-interval by default (PR #111843)

[Donát Nagy via cfe-commits]

NagyDonat wrote:

It turns out that this commit increases the runtime by ~3% on a set of 6-8 open source projects that we used as a benchmark. (The testing was done on our local fork by @gamesh411, he can provide more accurate data if needed.) Based on this, we decided to temporarily disable the assertion on our downstream branch (instead of using this patch), so I'm closing this PR because if we don't use it ourselves, then I won't try to sell it to the open source community.

I hope that eventually there will be a permanent solution for this issue, but I don't know exactly when. This task is assigned to an intern (Gábor Tóthvári) who is capable and diligent, but has other responsibilities (e.g. university studies) so doesn't work on this full time. 

https://github.com/llvm/llvm-project/pull/111843