Cleanup cargo2android configs and patches

Use name-suffix and dep-suffixes (aosp/2751102) and remove patches no longer needed as a result. Other minor cleanups to eliminate diffs in Android.bp files

Test: Ran cargo2android
Change-Id: I663dac2f6822387ae539116061e30a119123056d
diff --git a/Android.bp b/Android.bp
index c8cb65b..345783b 100644
--- a/Android.bp
+++ b/Android.bp
@@ -78,6 +78,3 @@
     product_available: true,
     vendor_available: true,
 }
-
-// Errors when listing tests:
-// error: test