Fix flapping common/io-tls unit test added in fbc607a4.

Since the server exits on error in this test there is no need to shut it down when the script completes. This usually worked because the message would arrive before the server had shutdown completely but sometimes it would error on a broken pipe.

test/src/module/common/ioTlsTest.c

@@ -965,9 +965,6 @@ testRun(void)
                     "TLS error [1:336151568] sslv3 alert handshake failure",
                     // TLS >= 3 Fedora/Alpine
                     "TLS error [1:167773200] ssl/tls alert handshake failure");
-
-                // -----------------------------------------------------------------------------------------------------------------
-                hrnServerScriptEnd(tls);
             }
             HRN_FORK_PARENT_END();
         }