Revert "Fix Compile Warnings (#5963)"

This reverts commit b83e16dbdd.

Found regressions like auto orientation didn't work anymore after this change, revert it

src/libnest2d/include/libnest2d/geometry_traits_nfp.hpp

@@ -182,6 +182,7 @@ inline TPoint<RawShape> referenceVertex(const RawShape& sh)
 template<class RawBox, class RawShape, class Ratio = double> inline NfpResult<RawShape> nfpInnerRectBed(const RawBox &bed, const RawShape &other)
 {
     using Vertex = TPoint<RawShape>;
+    using Edge   = _Segment<Vertex>;
     namespace sl = shapelike;
 
     auto    sbox         = sl::boundingBox(other);

src/libnest2d/include/libnest2d/placers/nfpplacer.hpp

@@ -1119,6 +1119,7 @@ private:
         for (const Item& item : items_) {
             if (!item.is_virt_object) { extruders.insert(item.extrude_ids.begin(), item.extrude_ids.end()); }
         }
+        bool need_wipe_tower = extruders.size() > 1;
 
         std::vector<RawShape> objs,excludes;
         for (const Item &item : items_) {