update expected output

Author: erik-krogh

javascript/ql/test/query-tests/Security/CWE-078/CommandInjection.expected

@@ -144,7 +144,6 @@ edges
 | execSeries.js:18:34:18:40 | req.url | execSeries.js:18:13:18:47 | require ... , true) |
 | execSeries.js:18:34:18:40 | req.url | execSeries.js:18:13:18:47 | require ... , true) |
 | execSeries.js:19:12:19:16 | [cmd] | execSeries.js:13:19:13:26 | commands |
-| execSeries.js:19:13:19:15 | cmd | execSeries.js:6:14:6:21 | arr[i++] |
 | execSeries.js:19:13:19:15 | cmd | execSeries.js:19:12:19:16 | [cmd] |
 | other.js:5:9:5:49 | cmd | other.js:7:33:7:35 | cmd |
 | other.js:5:9:5:49 | cmd | other.js:7:33:7:35 | cmd |