Remove patch now that 0.30.5 has landed #2

Job	Run time
Check wasm32 + wasm-bindgen	2m 56s
android	36s
Format + check + test	6m 48s
cargo-deny aarch64-apple-darwin	43s
cargo-deny aarch64-linux-android	42s
Check Windows	3m 41s
cargo-deny i686-pc-windows-gnu	42s
cargo-deny i686-pc-windows-msvc	38s
cargo-deny i686-unknown-linux-gnu	43s
cargo-deny wasm32-unknown-unknown	44s
cargo-deny x86_64-apple-darwin	40s
cargo-deny x86_64-pc-windows-gnu	43s
cargo-deny x86_64-pc-windows-msvc	43s
cargo-deny x86_64-unknown-linux-gnu	44s
cargo-deny x86_64-unknown-linux-musl	41s
cargo-deny x86_64-unknown-redox	40s
	22m 24s

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