Remove unused dependencies from cabal files

Author: erikd

hedgehog-example/hedgehog-example.cabal

@@ -40,6 +40,9 @@ library
   hs-source-dirs:
     src
 
+  ghc-options:
+    -Wall -Wunused-packages
+
   exposed-modules:
       Test.Example.Basic
     , Test.Example.Confidence
@@ -59,7 +62,6 @@ library
       hedgehog
     , hedgehog-quickcheck
     , base                            >= 3          && < 5
-    , barbies
     , containers                      >= 0.4        && < 0.9
     , directory                       >= 1.0        && < 1.4
     , filepath                        >= 1.3        && < 1.6
@@ -68,9 +70,7 @@ library
     , mmorph                          >= 1.0        && < 1.3
     , mtl                             >= 2.1        && < 2.4
     , parsec                          >= 3.1        && < 3.2
-    , pretty-show                     >= 1.6        && < 1.11
     , process                         >= 1.2        && < 1.7
-    , QuickCheck                      >= 2.7        && < 2.19
     , resourcet                       >= 1.1        && < 1.4
     , template-haskell                >= 2.10       && < 2.25
     , temporary                       >= 1.3        && < 1.4
@@ -87,12 +87,10 @@ test-suite test
 
   build-depends:
       hedgehog-example
-    , hedgehog
-    , hedgehog-quickcheck
     , base
 
   ghc-options:
-    -Wall -threaded -O2
+    -Wall -threaded -O2 -Wunused-packages
 
   hs-source-dirs:
     test

hedgehog-quickcheck/hedgehog-quickcheck.cabal

@@ -59,7 +59,6 @@ library
       base                            >= 3          && < 5
     , hedgehog                        >= 0.5        && < 1.8
     , QuickCheck                      >= 2.7        && < 2.19
-    , transformers                    >= 0.4        && < 0.7
 
   ghc-options:
     -Wall

hedgehog-test-laws/hedgehog-test-laws.cabal

@@ -52,7 +52,7 @@ test-suite test
     test.hs
 
   ghc-options:
-    -Wall -threaded -O2
+    -Wall -threaded -O2 -Wunused-packages
 
   hs-source-dirs:
     test
@@ -63,9 +63,7 @@ test-suite test
     , checkers                        >= 0.5        && < 0.8
     , QuickCheck                      >= 2.10       && < 2.19
     , tasty                           >= 1.2        && < 1.6
-    , tasty-expected-failure          >= 0.11       && < 0.13
     , tasty-quickcheck                >= 0.10       && < 0.12
-    , transformers                    >= 0.5        && < 0.7
 
   if impl(ghc < 8.0)
     buildable: False

hedgehog/hedgehog.cabal

@@ -86,7 +86,7 @@ library
     , wl-pprint-annotated             >= 0.0        && < 0.2
 
   ghc-options:
-    -Wall
+    -Wall -Wunused-packages
 
   hs-source-dirs:
     src
@@ -132,7 +132,7 @@ test-suite test
     test.hs
 
   ghc-options:
-    -Wall -threaded -O2
+    -Wall -threaded -O2 -Wunused-packages
 
   hs-source-dirs:
     test
@@ -154,8 +154,6 @@ test-suite test
     , containers                      >= 0.4        && < 0.9
     , mmorph                          >= 1.0        && < 1.3
     , mtl                             >= 2.1        && < 2.4
-    , pretty-show                     >= 1.6        && < 1.11
-    , text                            >= 1.1        && < 2.2
     , transformers                    >= 0.3        && < 0.7
 
   default-language: