Revert "gnu: libffi: Add unreleased patch to fix float128 on powerpc64le."

This reverts commit 4fff5ab24126a152b50c036b9bf8dc6f2740f094.  In
<https://debbugs.gnu.org/cgi/bugreport.cgi?bug=45252> we decided to apply a
patch to master instead, so this change is no longer needed on core-updates.

3 files changed, 1 insertions, 61 deletions

diff --git a/gnu/local.mk b/gnu/local.mk
index 5e7de580bb..b2d0161b99 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -1207,7 +1207,6 @@ dist_patch_DATA =						\
   %D%/packages/patches/jfsutils-include-systypes.patch		\
   %D%/packages/patches/julia-SOURCE_DATE_EPOCH-mtime.patch	\
   %D%/packages/patches/kdbusaddons-kinit-file-name.patch	\
-  %D%/packages/patches/libffi-float128-powerpc64le.patch	\
   %D%/packages/patches/libffi-3.3-powerpc-fixes.patch		\
   %D%/packages/patches/libvirt-create-machine-cgroup.patch	\
   %D%/packages/patches/libziparchive-add-includes.patch		\
diff --git a/gnu/packages/libffi.scm b/gnu/packages/libffi.scm
index 27bd79665a..ad077a59b7 100644
--- a/gnu/packages/libffi.scm
+++ b/gnu/packages/libffi.scm
@@ -51,8 +51,7 @@
               (sha256
                (base32
                 "0mi0cpf8aa40ljjmzxb7im6dbj45bb0kllcd09xgmp834y9agyvj"))
-              (patches (search-patches "libffi-3.3-powerpc-fixes.patch"
-                                       "libffi-float128-powerpc64le.patch"))))
+              (patches (search-patches "libffi-3.3-powerpc-fixes.patch"))))
     (build-system gnu-build-system)
     (arguments
      `(;; Prevent the build system from passing -march and -mtune to the
diff --git a/gnu/packages/patches/libffi-float128-powerpc64le.patch b/gnu/packages/patches/libffi-float128-powerpc64le.patch
deleted file mode 100644
index 4fd32b0102..0000000000
--- a/gnu/packages/patches/libffi-float128-powerpc64le.patch
+++ /dev/null
@@ -1,58 +0,0 @@
-From de93adfb6f48100946bba2c3abad2a77a0cfde0b Mon Sep 17 00:00:00 2001
-From: Fabrice Fontaine <fontaine.fabrice@gmail.com>
-Date: Sun, 24 Nov 2019 09:52:01 +0100
-Subject: [PATCH] ffi_powerpc.h: fix build failure with powerpc7
-
-This is a patch pulled down from the following:
-https://github.com/buildroot/buildroot/blob/78926f610b1411b03464152472fd430012deb9ac/package/libffi/0004-ffi_powerpc.h-fix-build-failure-with-powerpc7.patch
-
-This issue is being hit on OpenBMC code when pulling the latest
-libffi tag and building on a P8 ppc64le machine. I verified this
-patch fixes the issue we are seeing.
-
-Below is the original commit message:
-
-Sicne commit 73dd43afc8a447ba98ea02e9aad4c6898dc77fb0, build on powerpc7
-fails on:
-
-In file included from ../src/powerpc/ffi.c:33:0:
-../src/powerpc/ffi_powerpc.h:61:9: error: '_Float128' is not supported on this target
- typedef _Float128 float128;
-         ^~~~~~~~~
-
-Fix this build failure by checking for __HAVE_FLOAT128 before using
-_Float128, as _Float128 is enabled only on specific conditions, see
-output/host/powerpc64-buildroot-linux-gnu/sysroot/usr/include/bits/floatn.h:
-
- /* Defined to 1 if the current compiler invocation provides a
-    floating-point type with the IEEE 754 binary128 format, and this glibc
-    includes corresponding *f128 interfaces for it.  */
- #if defined _ARCH_PWR8 && defined __LITTLE_ENDIAN__ && (_CALL_ELF == 2) \
-     && defined __FLOAT128__ && !defined __NO_LONG_DOUBLE_MATH
- # define __HAVE_FLOAT128 1
- #else
- # define __HAVE_FLOAT128 0
- #endif
-
-Fixes:
- - http://autobuild.buildroot.org/results/5c9dd8fb3b6a128882b6250f197c80232d8a3b53
-
-Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
-Signed-off-by: Andrew Geissler <geissonator@yahoo.com>
----
- src/powerpc/ffi_powerpc.h | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/src/powerpc/ffi_powerpc.h b/src/powerpc/ffi_powerpc.h
-index 8e2f2f0e..960a5c42 100644
---- a/src/powerpc/ffi_powerpc.h
-+++ b/src/powerpc/ffi_powerpc.h
-@@ -57,7 +57,7 @@ typedef union
-   double d;
- } ffi_dblfl;
- 
--#if defined(__FLOAT128_TYPE__)
-+#if defined(__FLOAT128_TYPE__) && defined(__HAVE_FLOAT128)
- typedef _Float128 float128;
- #elif defined(__FLOAT128__)
- typedef __float128 float128;