Remove SuSEconfig call for sendmail
Removed disabled and obsolete code.
Fixed testsuite after postfix and sendmail SUSEConfig calls removal.
Updated changelog.
Removed obsolete RunSuSEconfigModule.
Removed SuSEConfig call for apache2.

Apache2's SuSEConfig module was removed sometime in 2005 (SLES10).
Updated testsuite so it reflects removal of SuSEConfig for apache2.