gnu: Switch from fixesproto to xorgproto.

* gnu/packages/xorg.scm (compositeproto)[inputs]: Replace FIXESPROTO with XORGPROTO.
(libxfixes)[propagated-inputs]: Likewise.
[inputs]: Remove XORGPROTO.
(fixesproto)[properties]: Mark as superseded by XORGPROTO.

gnu/packages/xorg.scm

@@ -265,7 +265,7 @@ (define-public compositeproto
             "1z0crmf669hirw4s7972mmp8xig80kfndja9h559haqbpvq5k4q4"))))
     (build-system gnu-build-system)
     (inputs
-      `(("fixesproto" ,fixesproto)))
+      `(("xorgproto" ,xorgproto)))
     (native-inputs
       `(("pkg-config" ,pkg-config)))
     (home-page "https://www.x.org/wiki/")
@@ -4504,8 +4504,8 @@ (define-public fixesproto
      "Fixes Extension makes changes to many areas of the protocol to resolve
 issues raised by application interaction with core protocol mechanisms that
 cannot be adequately worked around on the client side of the wire.")
-    (license license:x11)))
-
+    (license license:x11)
+    (properties `((superseded . ,xorgproto)))))
 
 (define-public libxdamage
   (package
@@ -4854,10 +4854,9 @@ (define-public libxfixes
             "1miana3y4hwdqdparsccmygqr3ic3hs5jrqfzp70hvi2zwxd676y"))))
     (build-system gnu-build-system)
     (propagated-inputs
-      `(("fixesproto" ,fixesproto)))
+      `(("xorgproto" ,xorgproto)))
     (inputs
-      `(("xorgproto" ,xorgproto)
-        ("libx11" ,libx11)))
+      `(("libx11" ,libx11)))
     (native-inputs
       `(("pkg-config" ,pkg-config)))
     (home-page "https://www.x.org/wiki/")