drop TH patch for not %ghc_arches_with_ghci

aeson-disable-TH.patch

@@ -1,10 +0,0 @@
---- aeson-0.8.0.2/aeson.cabal~	2015-01-26 14:40:59.738569354 +0900
-+++ aeson-0.8.0.2/aeson.cabal	2015-01-26 14:44:24.394504016 +0900
-@@ -87,7 +87,6 @@
-     Data.Aeson.Generic
-     Data.Aeson.Parser
-     Data.Aeson.Types
--    Data.Aeson.TH
- 
-   other-modules:
-     Data.Aeson.Encode.ByteString

ghc-aeson.spec

@@ -12,8 +12,6 @@ Summary:        Fast JSON parsing and encoding
 License:        BSD
 Url:            https://hackage.haskell.org/package/%{pkg_name}
 Source0:        https://hackage.haskell.org/package/%{pkg_name}-%{version}/%{pkg_name}-%{version}.tar.gz
-# for archs without ghci
-Patch1:         aeson-disable-TH.patch
 
 BuildRequires:  ghc-Cabal-devel
 BuildRequires:  ghc-rpm-macros
@@ -60,9 +58,6 @@ This package provides the Haskell %{pkg_name} library development files.
 
 %prep
 %setup -q -n %{pkg_name}-%{version}
-%ifnarch %{ghc_arches_with_ghci}
-%patch1 -p1 -b .orig
-%endif
 
 
 %build