Cleanup python version properties

Now that python 2 is fully removed, there's no need for
version-specific properties. Remove them.

Also remove usages of embedded_launcher: true, as that
is the new default value.

Bug: 399954452
Test: Presubmits
Change-Id: If2ec8f8e489653eb3d2a1959f378b89f5556dcb6
diff --git a/libsparse/Android.bp b/libsparse/Android.bp
index 44907a1..1d67cbe 100644
--- a/libsparse/Android.bp
+++ b/libsparse/Android.bp
@@ -89,11 +89,6 @@
     name: "simg_dump",
     main: "simg_dump.py",
     srcs: ["simg_dump.py"],
-    version: {
-        py3: {
-            embedded_launcher: true,
-        },
-    },
 }
 
 cc_fuzz {
diff --git a/trusty/test/driver/Android.bp b/trusty/test/driver/Android.bp
index b813a04..3faa878 100644
--- a/trusty/test/driver/Android.bp
+++ b/trusty/test/driver/Android.bp
@@ -23,10 +23,4 @@
         "**/*.py",
     ],
     test_suites: ["general-tests"],
-    version: {
-        py3: {
-            embedded_launcher: true,
-            enabled: true,
-        },
-    },
 }