Remove duplicate FSRNavigator, already in LHCb/Kernel/FSRAlgs
Should fix a number of tests that fail due to
# WARNING: Found 1 duplicates among the 16 genConfDb files :
# WARNING: --------------------------------------------------
# WARNING: -<component name>: <module> - [ <duplicates> ]
# WARNING: --------------------------------------------------
# WARNING: -FSRNavigator: LumiAlgs.LumiAlgsConf - ['FSRAlgs.FSRAlgsConf']
# WARNING: Fix your cmt/requirements file !!