Disable unused Python 2 variant.

Bug: 245854393
Test: presubmit
Change-Id: I270671534289db5c0333d1daf8f81c42cca36b0b
diff --git a/Android.bp b/Android.bp
index 1b291b2..fff8b04 100644
--- a/Android.bp
+++ b/Android.bp
@@ -35,9 +35,4 @@
     srcs: [
         "six.py",
     ],
-    version: {
-        py2: {
-            enabled: true,
-        },
-    },
 }