Remove superfluous exceptions

According to Sonar: ""throws" declarations should not be superfluous".

An exception in a throws declaration in Java is superfluous if it is:

 * listed multiple times
 * a subclass of another listed exception
 * a RuntimeException, or one of its descendants
 * completely unnecessary because the declared exception type cannot
   actually be thrown

Change-Id: I9b1794e5789ab268a3e4784d01a01053c82ef5f5
1 file changed