est: rm unneeded SteinerTree fwd decl

maliberty · maliberty · commit da5dbe94c013 · 2025-11-15T06:23:43.000Z
Signed-off-by: Matt Liberty &lt;mliberty@precisioninno.com&gt;
diff --git a/src/est/include/est/SteinerTree.h b/src/est/include/est/SteinerTree.h
@@ -55,8 +55,6 @@ class PinLoc
 using LocPinMap = std::unordered_map<odb::Point, PinSeq, PointHash, PointEqual>;
 using SteinerPt = int;
 
-class SteinerTree;
-
 // Wrapper for stt::Tree
 //
 // Flute
