flex: fix prog-ar patch

Could not apply when missing top level Makefile, which is also
regenerated by the configure script.

Signed-off-by: Lionel Landwerlin <llandwerlin@gmail.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

package/flex/flex-2.5.33-prog-ar.patch

@@ -1,18 +1,7 @@
-diff -rup flex-2.5.33.orig/Makefile flex-2.5.33/Makefile
---- flex-2.5.33.orig/Makefile	2007-01-18 17:29:32.000000000 +0100
-+++ flex-2.5.33/Makefile	2007-01-18 18:28:29.000000000 +0100
-@@ -105,7 +105,6 @@ am__installdirs = "$(DESTDIR)$(libdir)" 
- 	"$(DESTDIR)$(includedir)"
- libLIBRARIES_INSTALL = $(INSTALL_DATA)
- LIBRARIES = $(lib_LIBRARIES)
--AR = ar
- ARFLAGS = cru
- libfl_a_AR = $(AR) $(ARFLAGS)
- libfl_a_LIBADD =
 diff -rup flex-2.5.33.orig/Makefile.in flex-2.5.33/Makefile.in
 --- flex-2.5.33.orig/Makefile.in	2007-01-18 17:29:25.000000000 +0100
 +++ flex-2.5.33/Makefile.in	2007-01-18 18:28:22.000000000 +0100
-@@ -105,7 +105,6 @@ am__installdirs = "$(DESTDIR)$(libdir)" 
+@@ -105,7 +105,6 @@ am__installdirs = "$(DESTDIR)$(libdir)"
  	"$(DESTDIR)$(includedir)"
  libLIBRARIES_INSTALL = $(INSTALL_DATA)
  LIBRARIES = $(lib_LIBRARIES)