Delete old input files

...t/paper2/concrete2/cluster/cluster_inversion_ssm_lbfgs.sh

...per2/extended/cluster/cluster_inversion_sst_lbfgs_snr5.sh

input/paper2/extended/localminimum_lbfgs.txt

input/paper3/cluster_syntetics.sh

input/paper3/common.txt

input/paper3/convergence/cluster_inversion_nscgA.sh

input/paper3/convergence/cluster_inversion_nscgB.sh

input/paper3/convergence/cluster_inversion_nscgC.sh

input/paper3/convergence/inversion.txt

input/paper3/convergence/inversion_nscgA.txt

input/paper3/convergence/inversion_nscgB.txt

input/paper3/convergence/inversion_nscgC.txt

input/paper3/example4/common.txt

input/paper3/example4/multiscale.txt

input/paper3/example4/synthetics.txt

input/paper3/ip_comparison.txt

input/paper3/marmousi.csv

input/paper3/ob_comparison.txt

input/paper3/paper3_reference_data0.csv

input/paper3/paper3_reference_data1.csv