Drop ghc-haskell-org-hooks from linters image

They have been moved into ghc/ghc>

images/debian.dhall

@@ -328,18 +328,6 @@ let linterImages: List Image.Type =
         # CF.run "installing mypy" [ "pip3 install mypy==0.701" ]
 
       let lintersCommit: Text = "b376b0c20e033e71751fe2059daba1ba40b886be"
-      let installLinters: CF.Type =
-          [ CF.Statement.User "ghc" ]
-        # CF.run "cloning linter repository"
-          [ "git clone https://gitlab.haskell.org/ghc/git-haskell-org-hooks"
-          , "git -C git-haskell-org-hooks checkout ${lintersCommit}"
-          ]
-        # CF.run "building linters"
-          [ "cd git-haskell-org-hooks"
-          , "$CABAL update"
-          , "$CABAL install -w $GHC"
-          ]
-        # CF.env (toMap { PATH = "/home/ghc/.cabal/bin:$PATH" })
       let installShellcheck: CF.Type =
           installPackages [ "shellcheck" ]
       in
@@ -348,7 +336,6 @@ let linterImages: List Image.Type =
         # installMypy
         # installShellcheck
         # HaskellTools.installHLint
-        # installLinters
         # [CF.Statement.User "ghc"]
   }
 ]