Revert "fix"

This reverts commit 9fcf3be7cf.

iproute2/patches/100-configure.patch

@@ -1,12 +0,0 @@
---- a/configure
-+++ b/configure
-@@ -34,7 +34,8 @@ int main(int argc, char **argv) {
- }
- EOF
- 
--    if $CC -I$INCLUDE -o $TMPDIR/atmtest $TMPDIR/atmtest.c -latm >/dev/null 2>&1; then
-+# OpenWrt: disable ATM support even if present on host system
-+    if [ 1 -eq 0 ]; then
- 	echo "TC_CONFIG_ATM:=y" >>$CONFIG
- 	echo yes
-     else