From bdd963377582b4d3d17d32a13e5b0363ea5c115b Mon Sep 17 00:00:00 2001
From: Matthieu Schaller <schaller@strw.leidenuniv.nl>
Date: Fri, 17 Jan 2020 21:54:20 +0100
Subject: [PATCH] Removed the unused constant 'const_max_u_change'.

---
 src/const.h                                         | 3 ---
 src/hydro/AnarchyPU/hydro_io.h                      | 4 ----
 src/hydro/Default/hydro_io.h                        | 4 ----
 src/hydro/Minimal/hydro_io.h                        | 4 ----
 src/hydro/Planetary/hydro_io.h                      | 4 ----
 src/hydro/PressureEnergy/hydro_io.h                 | 4 ----
 src/hydro/PressureEnergyMorrisMonaghanAV/hydro_io.h | 4 ----
 src/hydro/PressureEntropy/hydro_io.h                | 4 ----
 src/hydro/SPHENIX/hydro_io.h                        | 4 ----
 9 files changed, 35 deletions(-)

diff --git a/src/const.h b/src/const.h
index 4040922b6f..b1e7e777e5 100644
--- a/src/const.h
+++ b/src/const.h
@@ -20,9 +20,6 @@
 #ifndef SWIFT_CONST_H
 #define SWIFT_CONST_H
 
-/* Time integration constants. */
-#define const_max_u_change 0.1f
-
 /* I/O Constant; this determines the relative tolerance between the value of
  * redshift read from the snapshot, and the value from the parameter file. This
  * current value asserts that they must match within 0.1%. */
diff --git a/src/hydro/AnarchyPU/hydro_io.h b/src/hydro/AnarchyPU/hydro_io.h
index 25fa28fc26..2d02b350ca 100644
--- a/src/hydro/AnarchyPU/hydro_io.h
+++ b/src/hydro/AnarchyPU/hydro_io.h
@@ -229,10 +229,6 @@ INLINE static void hydro_write_flavour(hid_t h_grpsph) {
                        "Simple treatment as in Price (2008)");
   io_write_attribute_s(h_grpsph, "Viscosity Model",
                        "Simplified version of Cullen & Denhen (2011)");
-
-  /* Time integration properties */
-  io_write_attribute_f(h_grpsph, "Maximal Delta u change over dt",
-                       const_max_u_change);
 }
 
 /**
diff --git a/src/hydro/Default/hydro_io.h b/src/hydro/Default/hydro_io.h
index 7a51b8cd50..849903d46b 100644
--- a/src/hydro/Default/hydro_io.h
+++ b/src/hydro/Default/hydro_io.h
@@ -229,10 +229,6 @@ INLINE static void hydro_write_flavour(hid_t h_grpsph) {
                        "Simple treatment as in Price (2017)");
   io_write_attribute_s(h_grpsph, "Viscosity Model",
                        "Simplified version of Cullen & Denhen (2011)");
-
-  /* Time integration properties */
-  io_write_attribute_f(h_grpsph, "Maximal Delta u change over dt",
-                       const_max_u_change);
 }
 
 /**
diff --git a/src/hydro/Minimal/hydro_io.h b/src/hydro/Minimal/hydro_io.h
index aa5b17acaf..9239de218e 100644
--- a/src/hydro/Minimal/hydro_io.h
+++ b/src/hydro/Minimal/hydro_io.h
@@ -211,10 +211,6 @@ INLINE static void hydro_write_flavour(hid_t h_grpsph) {
   io_write_attribute_s(h_grpsph, "Thermal Conductivity Model", "No treatment");
   io_write_attribute_s(h_grpsph, "Viscosity Model",
                        "Minimal treatment as in Monaghan (1992)");
-
-  /* Time integration properties */
-  io_write_attribute_f(h_grpsph, "Maximal Delta u change over dt",
-                       const_max_u_change);
 }
 
 /**
diff --git a/src/hydro/Planetary/hydro_io.h b/src/hydro/Planetary/hydro_io.h
index b0599ceba9..bf939ffa2c 100644
--- a/src/hydro/Planetary/hydro_io.h
+++ b/src/hydro/Planetary/hydro_io.h
@@ -214,10 +214,6 @@ INLINE static void hydro_write_flavour(hid_t h_grpsph) {
       h_grpsph, "Viscosity Model",
       "as in Springel (2005), i.e. Monaghan (1992) with Balsara (1995) switch");
 #endif
-
-  /* Time integration properties */
-  io_write_attribute_f(h_grpsph, "Maximal Delta u change over dt",
-                       const_max_u_change);
 }
 
 /**
diff --git a/src/hydro/PressureEnergy/hydro_io.h b/src/hydro/PressureEnergy/hydro_io.h
index 98ae52e273..2be85e79b6 100644
--- a/src/hydro/PressureEnergy/hydro_io.h
+++ b/src/hydro/PressureEnergy/hydro_io.h
@@ -210,10 +210,6 @@ INLINE static void hydro_write_flavour(hid_t h_grpsph) {
   io_write_attribute_s(h_grpsph, "Thermal Conductivity Model", "No treatment");
   io_write_attribute_s(h_grpsph, "Viscosity Model",
                        "Minimal treatment as in Monaghan (1992)");
-
-  /* Time integration properties */
-  io_write_attribute_f(h_grpsph, "Maximal Delta u change over dt",
-                       const_max_u_change);
 }
 
 /**
diff --git a/src/hydro/PressureEnergyMorrisMonaghanAV/hydro_io.h b/src/hydro/PressureEnergyMorrisMonaghanAV/hydro_io.h
index e77bf21f19..69385e5609 100644
--- a/src/hydro/PressureEnergyMorrisMonaghanAV/hydro_io.h
+++ b/src/hydro/PressureEnergyMorrisMonaghanAV/hydro_io.h
@@ -215,10 +215,6 @@ INLINE static void hydro_write_flavour(hid_t h_grpsph) {
   io_write_attribute_s(h_grpsph, "Thermal Conductivity Model", "No treatment");
   io_write_attribute_s(h_grpsph, "Viscosity Model",
                        "Variable viscosity as in Morris and Monaghan (1997)");
-
-  /* Time integration properties */
-  io_write_attribute_f(h_grpsph, "Maximal Delta u change over dt",
-                       const_max_u_change);
 }
 
 /**
diff --git a/src/hydro/PressureEntropy/hydro_io.h b/src/hydro/PressureEntropy/hydro_io.h
index d7168f3955..d3c800e03f 100644
--- a/src/hydro/PressureEntropy/hydro_io.h
+++ b/src/hydro/PressureEntropy/hydro_io.h
@@ -217,10 +217,6 @@ INLINE static void hydro_write_flavour(hid_t h_grpsph) {
   io_write_attribute_s(
       h_grpsph, "Viscosity Model",
       "as in Springel (2005), i.e. Monaghan (1992) with Balsara (1995) switch");
-
-  /* Time integration properties */
-  io_write_attribute_f(h_grpsph, "Maximal Delta u change over dt",
-                       const_max_u_change);
 }
 
 /**
diff --git a/src/hydro/SPHENIX/hydro_io.h b/src/hydro/SPHENIX/hydro_io.h
index ca333d4ed6..1b2d31a0ff 100644
--- a/src/hydro/SPHENIX/hydro_io.h
+++ b/src/hydro/SPHENIX/hydro_io.h
@@ -222,10 +222,6 @@ INLINE static void hydro_write_flavour(hid_t h_grpsph) {
                        "Simple treatment as in Price (2008)");
   io_write_attribute_s(h_grpsph, "Viscosity Model",
                        "Simplified version of Cullen & Denhen (2011)");
-
-  /* Time integration properties */
-  io_write_attribute_f(h_grpsph, "Maximal Delta u change over dt",
-                       const_max_u_change);
 }
 
 /**
-- 
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