interop-testing: Do not System.exit(0) from interop client

After #9937 was merged, the Java observability tests start to fail.

This System.exit(0) call in the existing Interop client main() method
prevented execution to continue in the new combined Observability
Interop test binary here. (The new binary is calling the old binary's
main() method.)

1 files changed, 0 insertions, 1 deletions

diff --git a/interop-testing/src/main/java/io/grpc/testing/integration/TestServiceClient.java b/interop-testing/src/main/java/io/grpc/testing/integration/TestServiceClient.java
index 8e5cdca22..0328debc3 100644
--- a/interop-testing/src/main/java/io/grpc/testing/integration/TestServiceClient.java
+++ b/interop-testing/src/main/java/io/grpc/testing/integration/TestServiceClient.java
@@ -71,7 +71,6 @@ public class TestServiceClient {
     } finally {
       client.tearDown();
     }
-    System.exit(0);
   }
 
   private String serverHost = "localhost";