[fuzz] Remove --additive-safe-int-feedback from Fuzzili

Flag has been on by default since June 2025.

Bug: 384959125
Change-Id: I35134fc642c40d4550f0f970e17318036767cd04
Reviewed-on: https://chrome-internal-review.googlesource.com/c/v8/fuzzilli/+/8582756
Reviewed-by: Matthias Liedtke <mliedtke@google.com>
Auto-Submit: Victor Gomes <victorgomes@google.com>
Commit-Queue: Matthias Liedtke <mliedtke@google.com>

Author: victorgomes

Sources/FuzzilliCli/Profiles/V8Profile.swift

@@ -120,10 +120,6 @@ let v8Profile = Profile(
             args.append("--precise-object-pinning")
         }
 
-        if probability(0.5) {
-            args.append("--additive-safe-int-feedback")
-        }
-
         // Temporarily enable the three flags below with high probability to
         // stress-test JSPI.
         // Lower the probabilities once we have enough coverage.