Test: Revert debugging output.

Revert "Test: Make capture_step_stdin more verbose." and "Test: more
suite-capture debugging." Tests on the Windows 8.1 builder have been
passing since recommended OS updates were installed on the 24th.

This reverts commits 7f710ef2b5 and
f52c3c468a.

Change-Id: I7cf10a38ba001426baea5fc76a34610c3a26ced2
Reviewed-on: https://code.wireshark.org/review/15590
Reviewed-by: Gerald Combs <gerald@wireshark.org>

test/suite-capture.sh

@@ -223,8 +223,6 @@ capture_step_stdin() {
 		CONSOLE_LOG_ARGS="-o console.log.level:127"
 	fi
 
-        set -xv
-	date
 	(cat "${CAPTURE_DIR}dhcp.pcap"; sleep 1; tail -c +25 "${CAPTURE_DIR}dhcp.pcap") | \
 	$DUT -i - $TRAFFIC_CAPTURE_PROMISC \
 		-w ./testout.pcap \
@@ -232,8 +230,6 @@ capture_step_stdin() {
 		$CONSOLE_LOG_ARGS \
 		> ./testout.txt 2> ./testerr.txt
 	RETURNVALUE=$?
-	date
-        set +xv
 	if [ ! $RETURNVALUE -eq $EXIT_OK ]; then
 		capture_test_output_print ./testout.txt ./testerr.txt ./dumpcap_debug_log.tmp
 		capture_test_output_capinfos ./testout.pcap