Merge pull request #1687 from Pinata-Consulting/detailed-routing-bonsai-pruning

detailed route: remove ORFS vars that are unused

Author: maliberty

flow/scripts/detail_route.tcl

@@ -10,10 +10,6 @@ set_propagated_clock [all_clocks]
 
 set_thread_count $::env(NUM_CORES)
 
-if { [info exists ::env(PRE_DETAIL_ROUTE_TCL)] } {
-  source $::env(PRE_DETAIL_ROUTE_TCL)
-}
-
 set additional_args ""
 if { [info exists ::env(dbProcessNode)]} {
   append additional_args " -db_process_node $::env(dbProcessNode)"