Node: Remove get_node_depth_chart, update get_fabric_depth_chart
Node: Remove get_node_depth_chart, update get_fabric_depth_chart

Again, duplicated functionality here.

Changed the 'hops' key to 'others' for get_fabric_depth_chart.

SLS-Dev/cxmanage,SilverLiningSystems/cxmanage-test,SilverLiningSystems/cxmanage-test2,SilverLiningSystems/cxmanage-test,Cynerva/cxmanage,SLS-Dev/cxmanage,Cynerva/cxmanage,SilverLiningSystems/cxmanage-test2