prepare: remove ICCID from prepare script and from test-data

The ICCID is not programmable on sysmo-usim-sja2 cards. Lets remove the
related parameters and variables from the test script

Change-Id: Ib22098b94dd2b8526e74b6d8b1cd7b2162f6307a

tests/sja2/prepare

@@ -3,7 +3,6 @@
 . ./test-data
 
 echo "================ PREPARING TEST CARD ================"
-$TOOL -a $ADMPIN -I $ICCID
 $TOOL -a $ADMPIN -J $IMSI
 echo "================ TEST CARD PREPARED ================="
 echo ""

tests/sja2/test-data

@@ -1,6 +1,5 @@
 TOOL=../../sysmo-isim-tool.sja2.py
 # data for the test scripts.  The values have to match the SIM card inserted while executing the test
-ICCID=8988211320300000028
 IMSI=262423203000002
 ADMPIN=72273953 # <==== CHANGE THIS TO THE ADM1 KEY OF YOUR TEST CARD!
 KI=94c7f52c8c7337fad1af3a73b17b56ac