gnu: Remove rust-integer-sqrt-0.1.

* gnu/packages/crates-io.scm (rust-integer-sqrt-0.1): Delete variable.

gnu/packages/crates-io.scm

@@ -28118,28 +28118,6 @@ bytestring representations.")
         ("rust-futures-util" ,rust-futures-util-0.3)
         ("rust-tokio" ,rust-tokio-0.2))))))
 
-(define-public rust-integer-sqrt-0.1
-  (package
-    (name "rust-integer-sqrt")
-    (version "0.1.5")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (crate-uri "integer-sqrt" version))
-       (file-name (string-append name "-" version ".tar.gz"))
-       (sha256
-        (base32 "0w6pzmgvs1mldkhafbwg9x7wzr0af3ngkimyb1gy97jarcdw6vi7"))))
-    (build-system cargo-build-system)
-    (arguments
-     `(#:cargo-inputs
-       (("rust-num-traits" ,rust-num-traits-0.2))))
-    (home-page "https://github.com/derekdreery/integer-sqrt-rs")
-    (synopsis "Integer square root algorithm for primitive rust types")
-    (description
-     "This is a Rust implementation of integer square root algorithm for
-primitive Rust types.")
-    (license (list license:asl2.0 license:expat))))
-
 (define-public rust-interpolate-name-0.2
   (package
     (name "rust-interpolate-name")