Get rid of custom Setup.hs files

They cause trouble for cabal v2-build.

This partially reverts commit 76d8be5
and commit bd26e03.
("Make git a test dependency of gitlib-cmdline."
and "Make git a test dependency of hlibgit2.")

The downside of this change is that if git is missing it will no
longer be flagged by cabal.

Author: hsenag

gitlib-cmdline/Setup.hs

@@ -1,6 +1,2 @@
-import           Distribution.Simple
-import           Distribution.Simple.Program
-
-main :: IO ()
-main = defaultMainWithHooks simpleUserHooks
-       { hookedPrograms = [ simpleProgram "git" ]}
+import Distribution.Simple
+main = defaultMain

gitlib-cmdline/gitlib-cmdline.cabal

@@ -6,7 +6,7 @@ License-file:        LICENSE
 License:             MIT
 Author:              John Wiegley
 Maintainer:          [email protected]
-Build-Type:          Custom
+Build-Type:          Simple
 Cabal-Version:       >=1.10
 Category:            Git
 

hlibgit2/Setup.hs

@@ -1,6 +1,2 @@
-import           Distribution.Simple
-import           Distribution.Simple.Program
-
-main :: IO ()
-main = defaultMainWithHooks simpleUserHooks
-       { hookedPrograms = [ simpleProgram "git" ]}
+import Distribution.Simple
+main = defaultMain

hlibgit2/hlibgit2.cabal

@@ -6,7 +6,7 @@ License-file:        LICENSE
 License:             MIT
 Author:              John Wiegley, Sakari Jokinen, Jacob Stanleyyeah,
 Maintainer:          [email protected]
-Build-Type:          Custom
+Build-Type:          Simple
 Cabal-Version:       >=1.10
 Category:            FFI