[source] tools/flex: Revert "tools/flex: add autoreconf"

[LEDE Commits]

hauke pushed a commit to source.git, branch master:
https://git.lede-project.org/027aea8af790c2741bcdd0f9b861765fcc1e23eb

commit 027aea8af790c2741bcdd0f9b861765fcc1e23eb
Author: Hauke Mehrtens <hauke at hauke-m.de>
AuthorDate: Thu Jul 13 22:47:42 2017 +0200

    tools/flex: Revert "tools/flex: add autoreconf"
    
    This was already done in commit 91e262c6b35a7 ("tools: flex: fix build
    with automake 1.15.1")
    
    This reverts commit 6b127d86390f85e92e59f3dba04fa585efb3b2c5.
    
    Signed-off-by: Hauke Mehrtens <hauke at hauke-m.de>
---
 tools/flex/Makefile | 1 -
 1 file changed, 1 deletion(-)

diff --git a/tools/flex/Makefile b/tools/flex/Makefile
index ca9aa98..1398b1a 100644
--- a/tools/flex/Makefile
+++ b/tools/flex/Makefile
@@ -15,7 +15,6 @@ PKG_HASH:=e87aae032bf07c26f85ac0ed3250998c37621d95f8bd748b31f15b33c45ee995
 
 HOST_FIXUP:=autoreconf
 HOST_BUILD_PARALLEL:=1
-HOST_FIXUP:=autoreconf
 
 include $(INCLUDE_DIR)/host-build.mk