remove files for bankimport functionality.
this was only used by the german office.
the functionality is now implemented in this plugin:
https://github.com/SolidCharity/OpenPetraPlugin_Bankimport/
nant test: don't call Ict.Testing.lib.MFinance.server.BankImport.dll as it has been removed
merge from lp:~tpokorra/openpetraorg/20141018_remove_germany_specific_code