gnu: Remove rust-miniz-oxide-c-api-0.2. * gnu/packages/crates-io.scm (rust-miniz-oxide-c-api-0.2): Delete variable.
gnu: Remove rust-minus-3. * gnu/packages/crates-io.scm (rust-minus-3): Delete variable.
gnu: Remove rust-mio-anonymous-pipes-0.1. * gnu/packages/crates-io.scm (rust-mio-anonymous-pipes-0.1): Delete variable.
gnu: Remove rust-mockall-0.10. * gnu/packages/crates-io.scm (rust-mockall-0.10): Delete variable.
gnu: Remove rust-mp4-0.8. * gnu/packages/crates-io.scm (rust-mp4-0.8): Delete variable.
gnu: Remove rust-dav1d-0.6. * gnu/packages/crates-graphics.scm (rust-dav1d-0.6): Delete variable.
gnu: Remove rust-dcv-color-primitives-0.1. * gnu/packages/crates-graphics.scm (rust-dcv-color-primitives-0.1): Delete variable.
gnu: Remove rust-ichwh-0.3. * gnu/packages/crates-graphics.scm (rust-ichwh-0.3): Delete variable.
gnu: Remove rust-lyon-tessellation-0.17. * gnu/packages/crates-graphics.scm (rust-lyon-tessellation-0.17): Delete variable.
gnu: Remove rust-piston-window-0.105. * gnu/packages/crates-graphics.scm (rust-piston-window-0.105): Delete variable.
gnu: Remove rust-smithay-clipboard-0.3. * gnu/packages/crates-graphics.scm (rust-smithay-clipboard-0.3): Delete variable.
gnu: Remove rust-x11-clipboard-0.4. * gnu/packages/crates-graphics.scm (rust-x11-clipboard-0.4): Delete variable.
gnu: Remove rust-y4m-0.5. * gnu/packages/crates-graphics.scm (rust-y4m-0.5): Delete variable.
gnu: Remove rust-gdk-pixbuf-0.7. * gnu/packages/crates-gtk.scm (rust-gdk-pixbuf-0.7): Delete variable.
gnu: Remove rust-pangocairo-0.8. * gnu/packages/crates-gtk.scm (rust-pangocairo-0.8): Delete variable.
gnu: Remove rust-addr2line-0.9. * gnu/packages/crates-io.scm (rust-addr2line-0.9): Delete variable.
gnu: Remove rust-afl-0.4. * gnu/packages/crates-io.scm (rust-afl-0.4): Delete variable.
gnu: Remove rust-arbitrary-0.2. * gnu/packages/crates-io.scm (rust-arbitrary-0.2): Delete variable.
gnu: Remove rust-argon2rs-0.2. * gnu/packages/crates-io.scm (rust-argon2rs-0.2): Delete variable.
gnu: Remove rust-assert-impl-0.1. * gnu/packages/crates-io.scm (rust-assert-impl-0.1): Delete variable.