2 files changed, 0 insertions, 14 deletions
diff --git a/libraries/ghc-heap/GHC/Exts/Heap.hs b/libraries/ghc-heap/GHC/Exts/Heap.hs
index 1e429ca054..2906cf6926 100644
--- a/libraries/ghc-heap/GHC/Exts/Heap.hs
+++ b/libraries/ghc-heap/GHC/Exts/Heap.hs
@@ -153,14 +153,7 @@ getClosureDataFromHeapObject
     -- ^ Heap representation of the closure.
 getClosureDataFromHeapObject x = do
     case unpackClosure# x of
-#if MIN_VERSION_ghc_prim(0,5,3)
         (# infoTableAddr, heapRep, pointersArray #) -> do
-#else
-        -- This is a hack to cover the bootstrap compiler using the old version
-        -- of 'unpackClosure'. The new 'unpackClosure' return values are not
-        -- merely a reordering, so using the old version would not work.
-        (# infoTableAddr, pointersArray, heapRep #) -> do
-#endif
             let infoTablePtr = Ptr infoTableAddr
                 ptrList = [case indexArray# pointersArray i of
                                 (# ptr #) -> Box ptr
diff --git a/libraries/ghc-heap/GHC/Exts/Heap/Closures.hs b/libraries/ghc-heap/GHC/Exts/Heap/Closures.hs
index 1a6a9371d4..3b51b22ceb 100644
--- a/libraries/ghc-heap/GHC/Exts/Heap/Closures.hs
+++ b/libraries/ghc-heap/GHC/Exts/Heap/Closures.hs
@@ -16,12 +16,7 @@ module GHC.Exts.Heap.Closures (
     , WhyBlocked(..)
     , TsoFlags(..)
     , allClosures
-#if __GLASGOW_HASKELL__ >= 809
-    -- The closureSize# primop is unsupported on earlier GHC releases but we
-    -- build ghc-heap as a boot library so it must be buildable. Drop this once
-    -- we are guaranteed to bootstsrap with GHC >= 8.9.
     , closureSize
-#endif
 
     -- * Boxes
     , Box(..)
@@ -430,11 +425,9 @@ allClosures (WeakClosure {..}) = [cfinalizers, key, value, finalizer, link]
 allClosures (OtherClosure {..}) = hvalues
 allClosures _ = []
 
-#if __GLASGOW_HASKELL__ >= 809
 -- | Get the size of the top-level closure in words.
 -- Includes header and payload. Does not follow pointers.
 --
 -- @since 8.10.1
 closureSize :: Box -> Int
 closureSize (Box x) = I# (closureSize# x)
-#endif