pixman: use Meson options to disable tests instead of patching build script

Author: Doekin

packages/p/pixman/xmake.lua

@@ -41,13 +41,13 @@ package("pixman")
         end
 
         local configs = {
+            "-Dtests=disabled",
+            "-Ddemos=disabled",
             "-Dopenmp=disabled",
             "-Dlibpng=disabled",
             "-Dgtk=disabled",
         }
         table.insert(configs, "-Ddefault_library=" .. (package:config("shared") and "shared" or "static"))
-        io.replace("meson.build", "subdir('test')", "", {plain = true})
-        io.replace("meson.build", "subdir('demos')", "", {plain = true})
         import("package.tools.meson").install(package, configs)
     end)