cairo: default ipc_rmid_deferred_release to false

This avoids the need to specify a value for every platform.  Upstream
does this since commit 8d5037ed ("meson: always skip
IPC_RMID_DEFERRED_RELEASE check when cross-compiling").  We might as
well keep the known true values for Linux and FreeBSD around to
preserve the small optimization.

pkgs/by-name/ca/cairo/package.nix

@@ -99,11 +99,8 @@ stdenv.mkDerivation (
           {
             linux = "true";
             freebsd = "true";
-            netbsd = "false";
-            windows = "false";
           }
-          .${stdenv.hostPlatform.parsed.kernel.name}
-            or (throw "Unknown value for ipc_rmid_deferred_release on ${stdenv.hostPlatform.parsed.kernel.name}")
+          .${stdenv.hostPlatform.parsed.kernel.name} or "false"
         }
       ''}"
     ];