Remove unused variable.
diff --git a/test/zerosized.cpp b/test/zerosized.cpp
index 07afd0f..86aa5eb 100644
--- a/test/zerosized.cpp
+++ b/test/zerosized.cpp
@@ -47,7 +47,7 @@
     if (MatrixType::RowsAtCompileTime == Dynamic && MatrixType::ColsAtCompileTime == Dynamic)
     {
 
-      MatrixType t2(0, 0), t3(t1);
+      MatrixType t2(0, 0);
       VERIFY(t2.rows() == 0);
       VERIFY(t2.cols() == 0);