Remove Data.String.StripSpec.main

Author: sol

test/Data/String/StripSpec.hs

@@ -1,13 +1,8 @@
-module Data.String.StripSpec (main, spec) where
+module Data.String.StripSpec (spec) where
 
 import Test.Hspec
 import Data.String.Strip
 
--- `main` is here so that this module can be run from GHCi on its own.  It is
--- not needed for automatic spec discovery.
-main :: IO ()
-main = hspec spec
-
 spec :: Spec
 spec = do
   describe "strip" $ do