core: move static herlper methods out of VURTI

Change-Id: Ifb4b7e15ac346853008f79769be102404b8cc0eb
Signed-off-by: Roy Golan <rgolan@redhat.com>
core: removed unused methods from VURTI

1. unsed code
2. needless static method

Change-Id: I0b028de953d76e25ad73bda76a6727bdc32b1b8e
Signed-off-by: Roy Golan <rgolan@redhat.com>