efivars: Drop workaround patch for host gcc < 4.7

The -flto change already disappeared in an earlier update.

-std=gnu11 and -Wmaybe-uninitialized are supported by gcc >= 4.7,
which covers all host distributions that are still supported.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-oe/recipes-bsp/efivar/efivar/fix-compile-failure-with-host-gcc-4.6.patch

@@ -1,43 +0,0 @@
-From 3edce6a0019bcb90febc1f654b5b2e2bad5c59bd Mon Sep 17 00:00:00 2001
-From: Hongxu Jia <hongxu.jia@windriver.com>
-Date: Thu, 26 May 2016 21:50:01 -0400
-Subject: [PATCH] fix compile failure with older host gcc (<=4.6)
-
-While host gcc version is 4.6.3 in ubuntu 1204, it
-did not recognize -std=gnu11 and -Wmaybe-uninitialized.
-
-While host gcc version is 4.4.7 in centos6, it
-did not recognize -std=gnu11, -Wmaybe-uninitialized,
-and -flto.
-
-For native build, use -std=gnu99 to replace -std=gnu11,
-and directly remove -Wmaybe-uninitialized and -flto.
-
-Upstream-Status: Pending
-
-Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com>
-
----
- gcc.specs | 4 ++--
- 1 file changed, 2 insertions(+), 2 deletions(-)
-
-diff --git a/gcc.specs b/gcc.specs
-index 45d43d1..f1c6944 100644
---- a/gcc.specs
-+++ b/gcc.specs
-@@ -2,13 +2,13 @@
- + -D_GNU_SOURCE
- 
- *efivar_cpp_options:
-- -Werror -Wall -std=gnu11 -Wextra
-+ -Werror -Wall -std=gnu99 -Wextra
- 
- *cpp_options:
- + %(efivar_cpp_options)
- 
- *cc1_options:
--+ %(efivar_cpp_options) -Wmaybe-uninitialized -fno-merge-constants -fvisibility=hidden %{!r:%{!fpie:%{!fPIE:%{!fpic:%{!fPIC:%{!fno-pic:-fPIE}}}}}}
-++ %(efivar_cpp_options) -fno-merge-constants -fvisibility=hidden %{!r:%{!fpie:%{!fPIE:%{!fpic:%{!fPIC:%{!fno-pic:-fPIE}}}}}}
- 
- *self_spec:
- + %{!shared:%{!static:%{!r:-pie}}} %{static:-Wl,-no-fatal-warnings -Wl,-static -static -Wl,-z,relro,-z,now}

meta-oe/recipes-bsp/efivar/efivar_37.bb

@@ -19,8 +19,6 @@ SRC_URI = "git://github.com/rhinstaller/efivar.git \
 SRC_URI_append_class-target = " file://0001-efivar-fix-for-cross-compile.patch \
                                 ${@bb.utils.contains('DISTRO_FEATURES', 'ld-is-gold', 'file://0004-fix-unknow-option-for-gold-linker.patch', '', d)} \
                               "
-SRC_URI_append_class-native = " file://fix-compile-failure-with-host-gcc-4.6.patch \
-                              "
 
 S = "${WORKDIR}/git"