Work on kalman filter interface.

test/filter.cpp

@@ -5,16 +5,6 @@
 
 using namespace matrix;
 
-template int kalman_correct<float, 6, 5>(
-    const SquareMatrix<float, 6> & P,
-    const Matrix<float, 5, 6> & C,
-    const SquareMatrix<float, 5> & R,
-    const Vector<float, 5> &r,
-    Vector<float, 6> & dx,
-    SquareMatrix<float, 6> & dP,
-    float & beta
-);
-
 int main()
 {
     const size_t n_x = 6;