Added tests for export

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MOS_MIGRATED_REVID=140380336
diff --git a/src/tools/singlejar/OWNERS b/src/tools/singlejar/OWNERS
deleted file mode 100644
index a7ff773..0000000
--- a/src/tools/singlejar/OWNERS
+++ /dev/null
@@ -1 +0,0 @@
-asmundak