ctranslate2: move to by-name

pkgs/by-name/ct/ctranslate2/package.nix

@@ -1,13 +1,14 @@
 {
   lib,
   stdenv,
+  config,
   fetchFromGitHub,
   cmake,
   llvmPackages, # openmp
   withMkl ? false,
   mkl,
-  withCUDA ? false,
-  withCuDNN ? false,
+  withCUDA ? config.cudaSupport,
+  withCuDNN ? withCUDA && (cudaPackages ? cudnn),
   cudaPackages,
   # Enabling both withOneDNN and withOpenblas is broken
   # https://github.com/OpenNMT/CTranslate2/issues/1294

pkgs/top-level/all-packages.nix

@@ -7140,12 +7140,6 @@ with pkgs;
 
   inherit (cosmopolitan) cosmocc;
 
-  ctranslate2 = callPackage ../development/libraries/ctranslate2 rec {
-    withCUDA = pkgs.config.cudaSupport;
-    withCuDNN = withCUDA && (cudaPackages ? cudnn);
-    cudaPackages = pkgs.cudaPackages;
-  };
-
   ustream-ssl = callPackage ../development/libraries/ustream-ssl { ssl_implementation = openssl; };
 
   ustream-ssl-wolfssl = callPackage ../development/libraries/ustream-ssl {