useless statement

[maddin200]

File:
mne-cpp-staging/src/libraries/inv/rap_music/inv_rap_music.cpp line 754

Code:
MatrixXT t_matA_k_1_tmp_inv(t_matA_k_1_tmp.rows(), t_matA_k_1_tmp.cols());
t_matA_k_1_tmp_inv.setZero();
t_matA_k_1_tmp_inv.block(0,0,t_size,t_size) = t_matA_k_1_tmp.block(0,0,t_size,t_size).inverse();//(A_k_1_tmp)^-1 = A_k_1_tmp_in
t_matA_k_1_tmp = MatrixXT::Zero(p_matA_k_1.rows(), p_matA_k_1.cols()); // <-- useless
t_matA_k_1_tmp = p_matA_k_1t_matA_k_1_tmp_inv;//(A_k_1A_k_1_tmp_inv) = A_k_1_tmp //