[gnome-latex] Remove ICONS_DIR from config.h (no longer used)

[Sébastien Wilmet <swilmet src gnome org>]

commit d0223376a8d9f978a5636e6b66bb391afab2a954
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Tue Apr 28 15:05:07 2020 +0200

    Remove ICONS_DIR from config.h (no longer used)

 configure.ac     | 5 -----
 vapi/config.vapi | 1 -
 2 files changed, 6 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 23c424c..89f008c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -75,11 +75,6 @@ AC_DEFINE_UNQUOTED([DATA_DIR],
                    ["${DATA_DIR}"],
                   [gnome-latex data directory])
 
-adl_RECURSIVE_EVAL(["${datadir}/icons/hicolor"], [ICONS_DIR])
-AC_DEFINE_UNQUOTED([ICONS_DIR],
-                   ["${ICONS_DIR}"],
-                  [icons directory])
-
 # Checks for programs
 AC_PROG_CC
 AC_PROG_INSTALL
diff --git a/vapi/config.vapi b/vapi/config.vapi
index e6cf0a1..79126fa 100644
--- a/vapi/config.vapi
+++ b/vapi/config.vapi
@@ -5,5 +5,4 @@ namespace Config
     public const string PACKAGE_VERSION;
     public const string DATA_DIR;
     public const string GETTEXT_PACKAGE;
-    public const string ICONS_DIR;
 }