remove the debian x32 patch

ghc.spec

@@ -96,7 +96,6 @@ Patch18: Disable-unboxed-arrays.patch
 # Debian patches:
 Patch24: buildpath-abi-stability.patch
 Patch26: no-missing-haddock-file-warning.patch
-#Patch28: x32-use-native-x86_64-insn.patch
 
 # fedora ghc has been bootstrapped on
 # %%{ix86} x86_64 ppc ppc64 armv7hl s390 s390x ppc64le aarch64
@@ -340,7 +339,6 @@ rm -r libffi-tarballs
 # debian
 %patch24 -p1 -b .orig
 %patch26 -p1 -b .orig
-#%%patch28 -p1 -b .orig
 
 %global gen_contents_index gen_contents_index.orig
 %if %{with haddock}

x32-use-native-x86_64-insn.patch

@@ -1,27 +0,0 @@
-Description: Use native x86_64 instructions on x32
- This patch enables a few native 64-bit integer instructions
- on x32 which are available on this architecture despite using
- 32-bit pointers. These instructions are present on x86_64 but
- not on x86 and ghc checks the size of (void *) to determine
- that. This method fails on x32 since despite using 32-bit
- pointers and hence sizeof(void *) == 4, it still uses the
- full x86_64 instruction set and software-emulated variants
- of the aforementioned 64-bit integer instructions are
- therefore not present in the toolchain which will make ghc
- fail to build on x32.
- See: https://ghc.haskell.org/trac/ghc/ticket/11571
- .
-
-Index: ghc-8.0.2/rts/RtsSymbols.c
-===================================================================
---- ghc-8.0.2.orig/rts/RtsSymbols.c
-+++ ghc-8.0.2/rts/RtsSymbols.c
-@@ -857,7 +857,7 @@
- 
- 
- // 64-bit support functions in libgcc.a
--#if defined(__GNUC__) && SIZEOF_VOID_P <= 4 && !defined(_ABIN32)
-+#if defined(__GNUC__) && SIZEOF_VOID_P <= 4 && !defined(_ABIN32) && !(defined(__x86_64__) && defined(__ILP32__))
- #define RTS_LIBGCC_SYMBOLS                             \
-       SymI_NeedsProto(__divdi3)                        \
-       SymI_NeedsProto(__udivdi3)                       \