remove module definitions for these standalone programs

Sometimes ghc --make skips building these binaries, as it sees no Main
module.

Build/Configure.hs

@@ -1,7 +1,5 @@
 {- Checks system configuration and generates SysConfig.hs. -}
 
-module Build.Configure where
-
 import System.Directory
 import Data.List
 import System.Process

Build/InstallDesktopFile.hs

@@ -8,8 +8,6 @@
 
 {-# LANGUAGE CPP #-}
 
-module Build.InstallDesktopFile where
-
 import Utility.Exception
 import Utility.FreeDesktop
 import Utility.Path

Build/OSXMkLibs.hs

@@ -5,8 +5,6 @@
  - Licensed under the GNU GPL version 3 or higher.
  -}
 
-module Build.OSXMkLibs where
-
 import Control.Applicative
 import System.Environment
 import Data.Maybe

Build/Standalone.hs

@@ -7,8 +7,6 @@
 
 {-# LANGUAGE CPP #-}
 
-module Build.Standalone where
-
 import Control.Applicative
 import Control.Monad.IfElse
 import System.Environment