Get rid of autoref-specialisation #1214

Job	Run time
Rustfmt	6s
Build docs	1m 27s
Clippy	50s
Test (MSRV)	1m 24s
Test (stable)	1m 50s
Test (beta)	2m 2s
Test (nightly)	1m 46s
Test (macOS)	1m 54s
Test (Windows)	4m 59s
Test (no features)	1m 15s
Test (all features - simdjson, cargo test --all-features --lib --tests --examples)	1m 21s
Test (native TLS, cargo test --all-features --features serenity/native_tls_backend --lib --tests ...	1m 27s
	20m 21s

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