Remove unnecessary `encoding*` dependencies

image-rs / image-png

PNG decoding and encoding library in pure Rust

https://docs.rs/png

Apache License 2.0

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Remove unnecessary `encoding*` dependencies #312

Closed CryZe closed 2 years ago

CryZe commented 2 years ago

ISO-8859-1 is a subset of Unicode and ASCII is a subset of UTF-8. No dependencies are needed.

CryZe commented 2 years ago

Seems like there's an open question of whether this chunk is even ISO-8859-1 in practice. Seems like (some?, most?) programs use the similar Windows-1252 encoding instead.