Remove project definitions that hardcode GraalVM versions in pom files.

We need them only in `master`.

Author: ansalond

mx.graalpython/suite.py

@@ -1396,24 +1396,5 @@
             },
             "maven": False,
         },
-
-        "graalpy-archetype-polyglot-app": {
-            "class": "MavenProject",
-            "subDir": "graalpython",
-            "noMavenJavadoc": True,
-            "maven": {
-                "tag": ["default", "public"],
-            },
-        },
-
-        "graalpy-maven-plugin": {
-            "class": "MavenProject",
-            "subDir": "graalpython",
-            "noMavenJavadoc": True,
-            "dependencies": ["GRAALPYTHON_EMBEDDING"],
-            "maven": {
-                "tag": ["default", "public"],
-            },
-        },
     },
 }