Drop legacy icon name mapping

The switch gnome -> Adwaita is the perfect opportunity to do
this cleanup. Also, the icon name mapping tool doesn't work.

https://bugzilla.gnome.org/show_bug.cgi?id=728984

configure.ac

@@ -30,35 +30,6 @@ AC_SUBST(SVGSRCDIR, "src/symbolic")
 AC_SUBST([render_sizes], ["8x8 16x16 22x22 24x24 32x32 48x48 256x256"])
 AC_SUBST([symbolic_render_sizes], [""])
 
-# Allow icon mapping to be disabled
-AC_ARG_ENABLE([icon-mapping],
-	AC_HELP_STRING([--enable-icon-mapping],
-			[Enable compatibility symlinks [default=auto]]),
-	[enable_mapping=$enableval],
-	[enable_mapping=yes])
-
-ICONMAP="true"
-if test "x$enable_mapping" != "xno"; then
-   UTILS_REQUIRED=0.8.7
-
-   AC_MSG_CHECKING([icon-naming-utils >= $UTILS_REQUIRED])
-   PKG_CHECK_EXISTS(icon-naming-utils >= $UTILS_REQUIRED,
-                    have_utils=yes, have_utils=no)
-   if test "x$have_utils" = "xyes"; then
-      UTILS_PATH="`$PKG_CONFIG --variable=program_path icon-naming-utils`"
-      ICONMAP="$UTILS_PATH/icon-name-mapping"
-      AC_MSG_RESULT([yes])
-   else
-      AC_MSG_RESULT([no])
-      AC_MSG_ERROR([icon-naming-utils >= $UTILS_REQUIRED is required to build
-                    and install adwaita-icon-theme])
-   fi
-else
-   ICONMAP="false"
-fi
-
-AC_SUBST(ICONMAP)
-
 AC_PATH_PROG(GTK_UPDATE_ICON_CACHE, gtk-update-icon-cache)
 if test -z "$GTK_UPDATE_ICON_CACHE"; then
     AC_MSG_ERROR([Could not find gtk-update-icon-cache])

src/fullcolor/Makefile.am

@@ -11,21 +11,7 @@ install-data-local:
 			$(mkdir_p) $(DESTDIR)$(themedir)/$$size/$$context; \
 			$(install_sh_DATA) $(top_srcdir)/$(SVGOUTDIR)/$$size/$$file $(DESTDIR)$(themedir)/$$size/$$file; \
 		done; \
-	done; \
-	if [ $(ICONMAP) != "false" ]; then \
-		cd $(DESTDIR)$(themedir); \
-		for size in $(render_sizes); do \
-			cd $$size || continue; \
-			echo -e "Going to set up icon mapping for $$size"; \
-			for dir in `find . -type d`; do \
-				context="`echo $$dir | cut -c 3-`"; \
-				if [ $$context ]; then \
-					$(ICONMAP) -c $$context; \
-				fi; \
-			done; \
-			cd ..; \
-		done; \
-	fi
+	done;
 
 ## FIXME we should add a way to remove links generated by icon mapping
 uninstall-local: