Disable antenna violation fixups

We are still struggling to route with this.
diff --git a/openlane/user_project_wrapper/config.tcl b/openlane/user_project_wrapper/config.tcl
index f183e45..5137aba 100755
--- a/openlane/user_project_wrapper/config.tcl
+++ b/openlane/user_project_wrapper/config.tcl
@@ -120,4 +120,4 @@
 	set ::env(ROUTING_CORES) 24
 }
 
-#set ::env(DIODE_INSERTION_STRATEGY) 0
+set ::env(DIODE_INSERTION_STRATEGY) 0