Change in case we enable the sec vtx in online

In online, the strangeness tracking would be off via
export ARGS_EXTRA_PROCESS_o2_secondary_vertexing_workflow='--disable-cascade-finder --disable-3body-finder --disable-strangeness-tracker
but then the ASYNC part of the FST would fail.

Author: chiarazampolli

prodtests/full_system_test.sh

@@ -247,6 +247,9 @@ for STAGE in $STAGES; do
     export SYNCMODE=0
     export HOSTMEMSIZE=$TPCTRACKERSCRATCHMEMORY
     export CTFINPUT=1
+    # the following line is needed in case the SECTVX was enabled in the SYNC; in this case, it'd have the options:
+    # export ARGS_EXTRA_PROCESS_o2_secondary_vertexing_workflow='--disable-cascade-finder --disable-3body-finder --disable-strangeness-tracker'
+    unset ARGS_EXTRA_PROCESS_o2_secondary_vertexing_workflow
     export WORKFLOW_PARAMETERS="${WORKFLOW_PARAMETERS},AOD"
   else
     export CREATECTFDICT=$SYNCMODEDOCTFDICT