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.
gnu: Remove rust-assert-fs-0.11. * gnu/packages/crates-io.scm (rust-assert-fs-0.11): Delete variable.
gnu: Remove rust-async-global-executor-1. * gnu/packages/crates-io.scm (rust-async-global-executor-1): Delete variable.
gnu: Remove rust-async-recursion-0.3. * gnu/packages/crates-io.scm (rust-async-recursion-0.3): Delete variable.
gnu: Remove rust-backtrace-sys-0.1. * gnu/packages/crates-io.scm (rust-backtrace-sys-0.1): Delete variable.
gnu: Remove rust-battery-0.7. * gnu/packages/crates-io.scm (rust-battery-0.7): Delete variable.
gnu: Remove rust-better-panic-0.2. * gnu/packages/crates-io.scm (rust-better-panic-0.2): Delete variable.