[Cleanup] Kill unnecessary initialisation

src/sand-wedge.cc

@@ -441,12 +441,12 @@ int main(int argc, char *argv[]) {
       velocityUpdater->nextTimeStep();
 
       auto const relativeTime = double(timeStep) / double(timeSteps);
-      Vector ell(leafVertexCount);
+      Vector ell;
       computeExternalForces(relativeTime, ell);
 
       Matrix velocityMatrix;
-      Vector velocityRHS(leafVertexCount);
-      Vector velocityIterate(leafVertexCount);
+      Vector velocityRHS;
+      Vector velocityIterate;
 
       stateUpdater->setup(tau);
       velocityUpdater->setup(ell, tau, relativeTime, velocityRHS,