deleted unneccesary files, made consistent with cooling

examples/Feedback/getGlass.sh

-#!/bin/bash
-wget http://virgodb.cosma.dur.ac.uk/swift-webstorage/ICs/glassCube_64.hdf5

src/sourceterms/sn_feedback/sn_feedback.c

-#error : this file is no longer in use!
-/*******************************************************************************
- * This file is part of SWIFT.
- * Copyright (c) 2016 Tom Theuns (tom.theuns@durham.ac.uk)
- *                    Matthieu Schaller (matthieu.schaller@durham.ac.uk)
- *                    Richard Bower (r.g.bower@durham.ac.uk)
- *                    Stefan Arridge  (stefan.arridge@durham.ac.uk)
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License as published
- * by the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- *
- ******************************************************************************/
-
-/* Config parameters. */
-#include "../config.h"
-#include "../sourceterms.h"
-
-void supernova_feedback_init(const struct swift_params* parameter_file,
-                             struct UnitSystem* us, struct supernova* sn) {
-  sn.time = parser_get_param_double(parameter_file, "SN:time");
-  sn.energy = parser_get_param_double(parameter_file, "SN:energy");
-  sn.x = parser_get_param_double(parameter_file, "SN:x");
-  sn.y = parser_get_param_double(parameter_file, "SN:y");
-  sn.z = parser_get_param_double(parameter_file, "SN:z");
-}
-
-void supernova_feedback_print(const struct supernova* sn) {
-  message(
-      " Single SNe of energy= %e will explode at time= %e at location "
-      "(%e,%e,%e)",
-      sn.energy, sn.time, sn.x, sn.y, sn.z);
-};
-
-__attribute__((always_inline)) INLINE static void do_supernova_feedback(
-    const struct sourceterms* sourceterms, struct part* p){};
-
-__attribute__((always_inline)) INLINE void update_entropy(
-    const sourceterms* sourceterms, struct part* p) {
-
-  /*updates the entropy of a particle due to feedback */
-  float u_old;
-  float u_new;
-  float new_entropy;
-  float old_entropy = p->entropy;
-  float rho = p->rho;
-
-  //  u_old = old_entropy/(GAMMA_MINUS1) * pow(rho,GAMMA_MINUS1);
-  const float u_old =
-      hydro_get_internal_energy(p, 0);  // dt = 0 because using current entropy
-  const float u_new = u_old + sourceterms->supernova.energy;
-  const float new_entropy =
-      u_new * pow_minus_gamma_minus_one(-p > rho) * hydro_gamma_minus_one;
-  p->entropy = new_entropy;
-}