diff --git a/pkgs/development/compilers/ghc/ghc-8.8.4-sphinx-6.0.patch b/pkgs/development/compilers/ghc/ghc-8.8.4-sphinx-6.0.patch
deleted file mode 100644
index c20c62f9cf6f..000000000000
--- a/pkgs/development/compilers/ghc/ghc-8.8.4-sphinx-6.0.patch
+++ /dev/null
@@ -1,13 +0,0 @@
-diff --git a/docs/users_guide/ghc_config.py.in b/docs/users_guide/ghc_config.py.in
-index 2670ad3cf1..d2f9d85c31 100644
---- a/docs/users_guide/ghc_config.py.in
-+++ b/docs/users_guide/ghc_config.py.in
-@@ -1,6 +1,6 @@
- extlinks = {
--    'ghc-ticket': ('https://gitlab.haskell.org/ghc/ghc/issues/%s', 'Issue #'),
--    'ghc-wiki': ('https://gitlab.haskell.org/ghc/ghc/wikis/%s', 'GHC Wiki'),
-+    'ghc-ticket': ('https://gitlab.haskell.org/ghc/ghc/issues/%s', 'Issue %s'),
-+    'ghc-wiki': ('https://gitlab.haskell.org/ghc/ghc/wikis/%s', 'GHC Wiki %s'),
- }
- 
- libs_base_uri = '../libraries'
diff --git a/pkgs/development/compilers/ghc/rename-numa-api-call.patch b/pkgs/development/compilers/ghc/rename-numa-api-call.patch
deleted file mode 100644
index 747d7a81a11e..000000000000
--- a/pkgs/development/compilers/ghc/rename-numa-api-call.patch
+++ /dev/null
@@ -1,32 +0,0 @@
-diff --git a/rts/win32/OSMem.c b/rts/win32/OSMem.c
---- a/rts/win32/OSMem.c
-+++ b/rts/win32/OSMem.c
-@@ -41,7 +41,7 @@ static block_rec* free_blocks = NULL;
- typedef LPVOID(WINAPI *VirtualAllocExNumaProc)(HANDLE, LPVOID, SIZE_T, DWORD, DWORD, DWORD);
-
- /* Cache NUMA API call. */
--VirtualAllocExNumaProc VirtualAllocExNuma;
-+VirtualAllocExNumaProc _VirtualAllocExNuma;
-
- void
- osMemInit(void)
-@@ -52,8 +52,8 @@ osMemInit(void)
-     /* Resolve and cache VirtualAllocExNuma. */
-     if (osNumaAvailable() && RtsFlags.GcFlags.numa)
-     {
--        VirtualAllocExNuma = (VirtualAllocExNumaProc)GetProcAddress(GetModuleHandleW(L"kernel32"), "VirtualAllocExNuma");
--        if (!VirtualAllocExNuma)
-+        _VirtualAllocExNuma = (VirtualAllocExNumaProc)(void*)GetProcAddress(GetModuleHandleW(L"kernel32"), "VirtualAllocExNuma");
-+        if (!_VirtualAllocExNuma)
-         {
-             sysErrorBelch(
-                 "osBindMBlocksToNode: VirtualAllocExNuma does not exist. How did you get this far?");
-@@ -569,7 +569,7 @@ void osBindMBlocksToNode(
-                On windows also -xb is broken, it does nothing so that can't
-                be used to tweak it (see #12577). So for now, just let the OS decide.
-             */
--            temp = VirtualAllocExNuma(
-+            temp = _VirtualAllocExNuma(
-                           GetCurrentProcess(),
-                           NULL, // addr? See base memory
-                           size,
diff --git a/pkgs/development/compilers/ghc/sphinx-4-configuration.patch b/pkgs/development/compilers/ghc/sphinx-4-configuration.patch
deleted file mode 100644
index 884a0bb39a5f..000000000000
--- a/pkgs/development/compilers/ghc/sphinx-4-configuration.patch
+++ /dev/null
@@ -1,11 +0,0 @@
---- ghc-8.10.4/docs/users_guide/conf.py.orig	2021-06-21 13:46:34.196383559 +0200
-+++ ghc-8.10.4/docs/users_guide/conf.py	2021-06-21 13:46:54.839349941 +0200
-@@ -100,7 +100,7 @@
- latex_elements = {
-     'inputenc': '',
-     'utf8extra': '',
--    'preamble': '''
-+    'preamble': r'''
- \usepackage{fontspec}
- \usepackage{makeidx}
- \setsansfont{DejaVu Sans}