Remove test.ini when done with it during tests

The file is created in the tests, and so should also be removed.

Change-Id: I8c087cc5cc71ac80b7c4974e2a69a747a929bedf
diff --git a/tests/functions.sh b/tests/functions.sh
index e7fbe0c..e436ed9 100755
--- a/tests/functions.sh
+++ b/tests/functions.sh
@@ -141,3 +141,5 @@
 else
     echo "inicomment failed: $VAL"
 fi
+
+rm test.ini