fa72dd314f fuzz: Move ISO8601 to one place (MarcoFalke)
Pull request description:
Seems confusing to split this to two places.
Also fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=42178
ACKs for top commit:
fanquake:
ACK fa72dd314f
Tree-SHA512: 637b0671078848ea417fdf66b92715602040fad34d4ca5f7b843a519a1cfeebe5d992a79a399deba39926905125681d66ab0dc05f66f79a26f3bf555e12fb0ba