haskellPackages.streamly: fix darwin override

fixes
```
error: querying available packages failed
caused by: nix-env failed with error: nix-env failed with exit code 1:
error: attribute 'streamly_0_8_1_1' missing

       at /nix/store/lw6gp8rrhd7lpi81dk9wr1l09a7za523-source/pkgs/development/haskell-modules/configuration-darwin.nix:259:6:

          258|     ] ++ (drv.libraryFrameworkDepends or []);
          259|   }) super.streamly_0_8_1_1;
             |      ^
          260|
```

PR #160733 didn't catch this it seems.

pkgs/development/haskell-modules/configuration-darwin.nix

@@ -251,13 +251,6 @@ self: super: ({
   # Otherwise impure gcc is used, which is Apple's weird wrapper
   c2hsc = addTestToolDepends [ pkgs.gcc ] super.c2hsc;
 
-  # streamly depends on Cocoa starting with 0.8.0
-  streamly_0_8_1_1 = overrideCabal (drv: {
-    libraryFrameworkDepends = [
-      darwin.apple_sdk.frameworks.Cocoa
-    ] ++ (drv.libraryFrameworkDepends or []);
-  }) super.streamly_0_8_1_1;
-
   http-client-tls = overrideCabal (drv: {
     postPatch = ''
       # This comment has been inserted, so the derivation hash changes, forcing