u-boot: drop patch not used anymore

Signed-off-by: Stefano Babic <sbabic@denx.de>

recipes-bsp/u-boot/files/0001-Allow-fw-env-tools-to-be-available-as-library.patch

@@ -1,31 +0,0 @@
-From e6850fcf6273b2068c5ae659bbacd8c7f664fd26 Mon Sep 17 00:00:00 2001
-From: Stefano Babic <sbabic@denx.de>
-Date: Mon, 22 Jun 2015 14:58:24 +0200
-Subject: [PATCH] Allow fw env tools to be available as library
-
-Signed-off-by: Stefano Babic <sbabic@denx.de>
----
- tools/env/Makefile | 4 +++-
- 1 file changed, 3 insertions(+), 1 deletion(-)
-
-diff --git a/tools/env/Makefile b/tools/env/Makefile
-index 40164f7..38ad118 100644
---- a/tools/env/Makefile
-+++ b/tools/env/Makefile
-@@ -23,10 +23,12 @@ endif
- always := fw_printenv
- hostprogs-y := fw_printenv
- 
--fw_printenv-objs := fw_env.o fw_env_main.o \
-+lib-y += fw_env.o \
- 	crc32.o ctype.o linux_string.o \
- 	env_attr.o env_flags.o aes.o
- 
-+fw_printenv-objs := fw_env_main.o $(lib-y)
-+
- quiet_cmd_crosstools_strip = STRIP   $^
-       cmd_crosstools_strip = $(STRIP) $^; touch $@
- 
--- 
-1.9.1
-

recipes-bsp/u-boot/u-boot-fw-utils%.bbappend

@@ -1,5 +1,3 @@
-FILESEXTRAPATHS_prepend := "${THISDIR}/files:"
-
 do_install_append() {
     install -d ${D}${libdir}
     install -m 644  ${S}/tools/env/lib.a ${D}${libdir}/libubootenv.a