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<https://github.com/The-OpenROAD-Project/OpenLane/issues/1081|#1081 RUN_SPEF_EXTRACTION=0 should skip run_spef_extraction>
New issue created by <https://github.com/proppy|proppy>
*Description*

setting `RUN_SPEF_EXTRACTION=0` doesn't seems to have any effect, see:  

<https://github.com/The-OpenROAD-Project/OpenLane/blob/b73708657657af6c1d7626ff8d390adc982627db/scripts/tcl_commands/sta.tcl#L90|OpenLane/scripts/tcl_commands/sta.tcl>

Line 90 in &lt;/The-OpenROAD-Project/OpenLane/commit/b73708657657af6c1d7626ff8d390adc982627db|b737086&gt;

*Expected behavior*

`run_spef_extraction` is skipped.
<https://github.com/The-OpenROAD-Project/OpenLane|The-OpenROAD-Project/OpenLane>