Adopt native-image macro changes

Author: gilles-duboscq

mx.graalpython/mx_graalpython.py

@@ -926,10 +926,8 @@ def import_python_sources(args):
             destination='bin/<exe:graalpython>',
             jar_distributions=['graalpython:GRAALPYTHON-LAUNCHER'],
             main_class='com.oracle.graal.python.shell.GraalPythonMain',
-            build_args=[
-                '--language:python',
-                '--language:llvm',
-            ]
+            build_args=[],
+            language='python',
         )
     ],
 ))

mx.graalpython/native-image.properties

@@ -1,12 +1,7 @@
 # This file contains native-image arguments needed to build graalpython
 #
 
-ImageName = graalpython
-
-Requires = tool:regex language:llvm
-
-LauncherClass = com.oracle.graal.python.shell.GraalPythonMain
-LauncherClassPath = lib/graalvm/launcher-common.jar:lib/graalvm/graalpython-launcher.jar
+Requires = language:regex language:llvm
 
 JavaArgs = -Xmx4G -Dpolyglot.engine.PreinitializeContexts=python