Remove the use-c-malloc build flag (#1793)

* Remove the use-c-malloc build flag

core/src/Streamly/Internal/Foreign/Malloc.hs

@@ -1,49 +0,0 @@
-#include "inline.hs"
-
--- |
--- Module      : Streamly.Internal.Foreign.Malloc
--- Copyright   : (c) 2019 Composewell Technologies
---
--- License     : BSD-3-Clause
--- Maintainer  : streamly@composewell.com
--- Stability   : experimental
--- Portability : GHC
---
-module Streamly.Internal.Foreign.Malloc
-    (
-      mallocForeignPtrAlignedBytes
-    , mallocForeignPtrAlignedUnmanagedBytes
-    )
-where
-
-
--- We use GHC malloc by default
-
-import Foreign.ForeignPtr (ForeignPtr, newForeignPtr_)
-import Foreign.Marshal.Alloc (mallocBytes)
-#ifdef USE_C_MALLOC
-import Foreign.ForeignPtr (newForeignPtr)
-import Foreign.Marshal.Alloc (finalizerFree)
-#endif
-
-import qualified GHC.ForeignPtr as GHC
-
-{-# INLINE mallocForeignPtrAlignedBytes #-}
-mallocForeignPtrAlignedBytes :: Int -> Int -> IO (GHC.ForeignPtr a)
-#ifdef USE_C_MALLOC
-mallocForeignPtrAlignedBytes size _alignment = do
-    p <- mallocBytes size
-    newForeignPtr finalizerFree p
-#else
-mallocForeignPtrAlignedBytes =
-    GHC.mallocPlainForeignPtrAlignedBytes
-#endif
-
--- memalign alignment size
--- foreign import ccall unsafe "stdlib.h posix_memalign" _memalign :: CSize -> CSize -> IO (Ptr a)
-
-mallocForeignPtrAlignedUnmanagedBytes :: Int -> Int -> IO (ForeignPtr a)
-mallocForeignPtrAlignedUnmanagedBytes size _alignment = do
-    -- XXX use posix_memalign/aligned_alloc for aligned allocation
-    p <- mallocBytes size
-    newForeignPtr_ p

core/streamly-core.cabal

@@ -237,7 +237,6 @@ library
                      , Streamly.Internal.Control.Monad
                      , Streamly.Internal.Control.ForkIO
                      , Streamly.Internal.Data.Cont
-                     , Streamly.Internal.Foreign.Malloc
                      , Streamly.Internal.System.IO
                      , Streamly.Internal.Data.IsMap
 

streamly.cabal

@@ -137,7 +137,6 @@ extra-source-files:
     core/src/Streamly/Internal/Control/Monad.hs
     core/src/Streamly/Internal/Control/ForkIO.hs
     core/src/Streamly/Internal/Data/Cont.hs
-    core/src/Streamly/Internal/Foreign/Malloc.hs
     core/src/Streamly/Internal/System/IO.hs
     core/src/Streamly/Internal/Data/IsMap.hs
     core/src/Streamly/Internal/Data/Tuple/Strict.hs
@@ -287,11 +286,6 @@ flag has-llvm
   manual: True
   default: False
 
-flag use-c-malloc
-  description: Use C malloc instead of GHC malloc
-  manual: True
-  default: False
-
 flag opt
   description: off=GHC default, on=-O2
   manual: True
@@ -324,9 +318,6 @@ common compile-options
     if flag(inspection)
       cpp-options:    -DINSPECTION
 
-    if flag(use-c-malloc)
-      cpp-options:    -DUSE_C_MALLOC
-
     ghc-options:    -Weverything
                     -Wno-implicit-prelude
                     -Wno-missing-deriving-strategies
@@ -534,7 +525,6 @@ library
                      , Streamly.Internal.Control.Monad
                      , Streamly.Internal.Control.ForkIO
                      , Streamly.Internal.Data.Cont
-                     , Streamly.Internal.Foreign.Malloc
                      , Streamly.Internal.System.IO
 
                      -- streamly-strict-data