Fix package_friendly1 test

This used to check for an interface method getting added
as a goto function, which doesn't happen anymore.

Author: smowton

regression/cbmc-java/package_friendly1/test.desc

@@ -2,7 +2,6 @@ CORE
 main.class
 package_friendly1.class package_friendly2.class --show-goto-functions
 ^main[.]main[(][)].*$
-^package_friendly1[.]operation1[(][)].*$
 ^package_friendly2[.]operation2[(][)].*$
 ^EXIT=0$
 ^SIGNAL=0$