Sketcher Gui: Fix dead code clang-tidy

src/Mod/Sketcher/Gui/CommandConstraints.cpp

@@ -4499,9 +4499,7 @@ void CmdSketcherConstrainDistance::applyConstraint(std::vector<SelIdPair>& selSe
         case 2:// {SelEdge}
         case 3:// {SelExternalEdge}
         {
-            GeoId1 = GeoId2 = selSeq.at(0).GeoId;
-            PosId1 = Sketcher::PointPos::start;
-            PosId2 = Sketcher::PointPos::end;
+            GeoId1 = selSeq.at(0).GeoId;
 
             arebothpointsorsegmentsfixed = isPointOrSegmentFixed(Obj, GeoId1);
 
@@ -4549,7 +4547,6 @@ void CmdSketcherConstrainDistance::applyConstraint(std::vector<SelIdPair>& selSe
             GeoId1 = selSeq.at(0).GeoId;
             GeoId2 = selSeq.at(1).GeoId;
             PosId1 = selSeq.at(0).PosId;
-            PosId2 = selSeq.at(1).PosId;
 
             Base::Vector3d pnt = Obj->getPoint(GeoId1, PosId1);
             const Part::Geometry* geom = Obj->getGeometry(GeoId2);

src/Mod/Sketcher/Gui/DrawSketchHandlerArcOfEllipse.h

@@ -298,10 +298,6 @@ public:
                 minAxisPoint = centerPoint + minAxisDir;
                 endAngle += M_PI / 2;
                 startAngle += M_PI / 2;
-                phi -= M_PI / 2;
-                double t = a;
-                a = b;
-                b = t;  // swap a,b
             }
 
             int currentgeoid = getHighestCurveIndex();

src/Mod/Sketcher/Gui/DrawSketchHandlerArcOfParabola.h

@@ -221,12 +221,9 @@ public:
             double ustartpoint = (cos(phi) * (startingPoint.y - axisPoint.y)
                                   - (startingPoint.x - axisPoint.x) * sin(phi));
 
-            double uendpoint =
-                (cos(phi) * (endPoint.y - axisPoint.y) - (endPoint.x - axisPoint.x) * sin(phi));
-
             double startAngle = ustartpoint;
 
-            double endAngle = uendpoint;
+            double endAngle;
 
             bool isOriginalArcCCW = true;
 

src/Mod/Sketcher/Gui/DrawSketchHandlerEllipse.h

@@ -746,7 +746,7 @@ private:
         int count = 0;
         int limit = 25;  // no infinite loops!
         bool success = false;
-        double tempB = b;
+        double tempB;
 
         // adjust b until our mangled vectors produce a good ellipse in GC_MakeEllipse
         // and the mangled major and minor lines in LinePy::PyInit(...) are such that