tools: sof_perf_analyzer: remove skip to first trace option

CI performance test is failing in recent daily build, this is
due to timestamp are aligned between kernel and SOF, details
are listed in below link.

The firmware timestamp is in sync with the host side after DSP
boot up, and becomes much more deterministic. The condition to use
--skip-to-first-trace option in CI is eliminated (see the help
info for the reason it is used in CI test).

Based on this, skip-to-first-trace are not needed anymore,
hence remove it from the performance test case script.

Link: thesofproject/sof#8480

Signed-off-by: Baofeng Tian <[email protected]>

case-lib/lib.sh

@@ -966,9 +966,9 @@ perf_analyze()
     dlogi "Checking SOF component performance"
     if [ -e "$LOG_ROOT/mtrace.txt" ]; then
         if [ -e "$LOG_ROOT/dmesg.txt" ]; then
-            perf_cmd="sof_perf_analyzer.py --skip-to-first-trace --kmsg=$LOG_ROOT/dmesg.txt --out2html $LOG_ROOT/sof_perf.html $LOG_ROOT/mtrace.txt"
+            perf_cmd="sof_perf_analyzer.py --kmsg=$LOG_ROOT/dmesg.txt --out2html $LOG_ROOT/sof_perf.html $LOG_ROOT/mtrace.txt"
         else
-            perf_cmd="sof_perf_analyzer.py --skip-to-first-trace --out2html $LOG_ROOT/sof_perf.html $LOG_ROOT/mtrace.txt"
+            perf_cmd="sof_perf_analyzer.py --out2html $LOG_ROOT/sof_perf.html $LOG_ROOT/mtrace.txt"
         fi
         dlogc "$perf_cmd"
         eval "$perf_cmd" || {