Remove additional relics of pre-1.3.24 SWIG support.
Remove additional relics of pre-1.3.24 SWIG support.

* build/generator/gen_base.py
  (TargetSWIG.add_dependencies): Remove swig-runtime code.
  (TargetSWIGRuntime): Delete class.
  (TargetSWIGLib.add_dependencies): Delete method.

jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion