Remove plutus-ghc-stub (#6514)

.gitattributes

@@ -1,6 +1,5 @@
 # linguist gets confused by PIR files, and thinks they make up a lot of our source!
 *.pir linguist-detectable=false
-stubs/plutus-ghc-stub/** linguist-vendored=true
 # Large HTML files inside 'notes' are dominating our repoistory language
 # estimate.
 notes/**/*.html linguist-documentation

cabal.project

@@ -29,7 +29,6 @@ packages: cardano-constitution
  plutus-tx-plugin
  plutus-tx-test-util
  prettyprinter-configurable
- stubs/plutus-ghc-stub
  doc/docusaurus/docusaurus-examples.cabal
 
 -- We never, ever, want this.
@@ -60,11 +59,6 @@ if impl(ghc < 9.0) || os(windows)
  allow-older: plutus-cert:base
 
 if os(windows)
- -- When cross compiling we don't have a `ghc` package, so use
- -- the `plutus-ghc-stub` package instead.
- package plutus-tx-plugin
- flags: +use-ghc-stub
-
  -- Exclude tests that use `doctest`. They will not work for
  -- cross compilation and `cabal` will not be able to make a plan.
  package prettyprinter-configurable

plutus-tx-plugin/plutus-tx-plugin.cabal

@@ -50,11 +50,6 @@ common os-support
  if (impl(ghcjs) || os(windows))
  buildable: False
 
-flag use-ghc-stub
- description: Use the `plutus-ghc-stub` package instead of `ghc`.
- default: False
- manual: True
-
 library
  import: lang, ghc-version-support, os-support
  hs-source-dirs: src
@@ -85,6 +80,7 @@ library
  , either
  , extra
  , flat ^>=0.6
+ , ghc
  , lens
  , mtl
  , plutus-core:{plutus-core, plutus-ir} ^>=1.34
@@ -94,14 +90,6 @@ library
  , text
  , uniplate
 
- if flag(use-ghc-stub)
- build-depends: plutus-ghc-stub
- ghc-options:
- -Wno-unused-packages -Wno-unused-imports -Wno-overlapping-patterns
-
- else
- build-depends: ghc
-
 executable gen-plugin-opts-doc
  import: lang, ghc-version-support, os-support
  main-is: GeneratePluginOptionsDoc.hs
@@ -121,10 +109,6 @@ executable gen-plugin-opts-doc
 
 test-suite plutus-tx-plugin-tests
  import: lang, ghc-version-support, os-support
-
- if flag(use-ghc-stub)
- buildable: False
-
  type: exitcode-stdio-1.0
  hs-source-dirs: test
  main-is: Spec.hs