Delete unlawful MonadPlus instance

Fixes #95.

Author: no-longer-on-githu-b

README.md

@@ -40,7 +40,7 @@ deleteBlankLines path = do
 
 This looks like ordinary, synchronous, imperative code, but actually operates asynchronously without any callbacks. Error handling is baked in so you only deal with it when you want to.
 
-The library contains instances for `Semigroup`, `Monoid`, `Apply`, `Applicative`, `Bind`, `Monad`, `Alt`, `Plus`, `MonadPlus`, `MonadEff`, and `MonadError`. These instances allow you to compose asynchronous code as easily as `Eff`, as well as interop with existing `Eff` code.
+The library contains instances for `Semigroup`, `Monoid`, `Apply`, `Applicative`, `Bind`, `Monad`, `Alt`, `Plus`, `MonadEff`, and `MonadError`. These instances allow you to compose asynchronous code as easily as `Eff`, as well as interop with existing `Eff` code.
 
 ## Escaping Callback Hell
 

src/Control/Monad/Aff.purs

@@ -29,7 +29,6 @@ import Control.Monad.Eff.Class (class MonadEff)
 import Control.Monad.Eff.Exception (Error, EXCEPTION, throwException, error)
 import Control.Monad.Error.Class (class MonadThrow, class MonadError, throwError)
 import Control.Monad.Rec.Class (class MonadRec, Step(..))
-import Control.MonadPlus (class MonadZero, class MonadPlus)
 import Control.Parallel (class Parallel)
 import Control.Plus (class Plus, empty)
 
@@ -198,8 +197,6 @@ instance alternativeAff :: Alternative (Aff e)
 
 instance monadZero :: MonadZero (Aff e)
 
-instance monadPlusAff :: MonadPlus (Aff e)
-
 instance monadRecAff :: MonadRec (Aff e) where
   tailRecM f a = runFn3 _tailRecM isLoop f a
     where