Auto merge of #24335 - sinkuu:unuesd_deps, r=SimonSapin

Remove unused dependencies

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Removes unused crates from `Cargo.toml` to (possibly) shorten build time.

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components/canvas/Cargo.toml

@@ -32,7 +32,6 @@ num-traits = "0.2"
 offscreen_gl_context = {version = "0.25", features = ["serde", "osmesa"]}
 raqote = {git = "https://github.com/jrmuizel/raqote", optional = true}
 pixels = {path = "../pixels"}
-serde_bytes = "0.10"
 servo_config = {path = "../config"}
 sparkle = "0.1"
 webrender = {git = "https://github.com/servo/webrender"}