tests: Don't limit fuzzing inputs to 1 MB for afl-fuzz (now: ∞ ∀ fuzzers)
Summary:
This change provides a level playing field for all fuzzers which allows for fair benchmarking using projects such as the excellent FuzzBench project. Prior to this commit we limited afl-fuzz to ≤1 MB inputs but allowed unlimited length inputs for all other fuzzers.
Backport of core PR19052.
Test Plan:
ninja bitcoin-fuzzers ./test/fuzz/test_runner.py <path_to_corpus>
Reviewers: #bitcoin_abc, majcosta
Reviewed By: #bitcoin_abc, majcosta
Differential Revision: https://reviews.bitcoinabc.org/D9062