Revert "Merge bitcoin#26912: ci: Bump --combinedlogslen to debug intermittent issues"

This reverts commit 06f3ffe.

Author: UdjinM6

ci/dash/test_integrationtests.sh

@@ -44,7 +44,7 @@ EXTRA_ARGS="--dashd-arg=-socketevents=$SOCKETEVENTS"
 
 set +e
 # shellcheck disable=SC2086
-LD_LIBRARY_PATH="$DEPENDS_DIR/$HOST/lib" ./test/functional/test_runner.py --ci --attempts=3 --ansi --combinedlogslen=99999999 --timeout-factor="${TEST_RUNNER_TIMEOUT_FACTOR}" ${TEST_RUNNER_EXTRA} --failfast --nocleanup --tmpdir="$(pwd)/testdatadirs" $PASS_ARGS $EXTRA_ARGS
+LD_LIBRARY_PATH="$DEPENDS_DIR/$HOST/lib" ./test/functional/test_runner.py --ci --attempts=3 --ansi --combinedlogslen=4000 --timeout-factor="${TEST_RUNNER_TIMEOUT_FACTOR}" ${TEST_RUNNER_EXTRA} --failfast --nocleanup --tmpdir="$(pwd)/testdatadirs" $PASS_ARGS $EXTRA_ARGS
 RESULT=$?
 set -e