quick remove of unused grub1 files
remove grub specific workarounds
remove more grub1 specialities
remove unneeded section dialogs
remove unused install to floppy
remove unused methods
remove unused method
remove all BootGRUB occurences
remove unused method
remove unused method FixGlobals
remove unused method FixSection
remove RemoveUnexistentSections method as sections are now under control of grub2
remove UpdateAppend method as updating sections is now grub2 job
remove ConvertXENinDomU method as it modify sections which is grub2 task
remove AddFirmwareToBootloader as it is not used
remove complete sections widget as we do no longer allow sections modification
remove unused popups
remove sections widgets as it is no longer needed for grub2
remove method TabsDescr as it is no longer used
remove manual edit widget as it is no longer used