gnu: retroarch: Remove input labels.

* gnu/packages/emulators.scm (retroarch)[inputs]: Remove labels.

Change-Id: Ia536f4b529260dc8c0f91618e0fd1e207984942f

gnu/packages/emulators.scm

@@ -1477,30 +1477,30 @@ (define-public retroarch
                  "--disable-builtinflac"
                  "--disable-builtinglslang")))))))
     (inputs
-     `(("alsa-lib" ,alsa-lib)
+     (list alsa-lib
-       ("ffmpeg" ,ffmpeg)
+           eudev
-       ("flac" ,flac)
+           ffmpeg
-       ("freetype" ,freetype)
+           flac
-       ("glslang" ,glslang)
+           freetype
-       ("libxinerama" ,libxinerama)
+           glslang
-       ("libxkbcommon" ,libxkbcommon)
+           libxinerama
-       ("libxml2" ,libxml2)
+           libxkbcommon
-       ("libxrandr" ,libxrandr)
+           libxml2
-       ("libxv" ,libxv)
+           libxrandr
-       ("mbedtls-apache" ,mbedtls-apache)
+           libxv
-       ("mesa" ,mesa)
+           mbedtls-apache
-       ("openal" ,openal)
+           mesa
-       ("openssl" ,openssl)
+           openal
-       ("pulseaudio" ,pulseaudio)
+           openssl
-       ("python" ,python)
+           pulseaudio
-       ("qtbase" ,qtbase-5)
+           python
-       ("sdl" ,sdl2)
+           qtbase-5
-       ("spirv-headers" ,spirv-headers)
+           sdl2
-       ("spirv-tools" ,spirv-tools)
+           spirv-headers
-       ("udev" ,eudev)
+           spirv-tools
-       ("vulkan-loader" ,vulkan-loader)
+           vulkan-loader
-       ("wayland" ,wayland)
+           wayland
-       ("zlib" ,zlib)))
+           zlib))
     (native-inputs
      (list pkg-config wayland-protocols which))
     (native-search-paths