vectorise: Put it out of its misery

Poor DPH and its vectoriser have long been languishing; sadly it seems there is
little chance that the effort will be rekindled. Every few years we discuss
what to do with this mass of code and at least once we have agreed that it
should be archived on a branch and removed from `master`. Here we do just that,
eliminating heaps of dead code in the process.

Here we drop the ParallelArrays extension, the vectoriser, and the `vector` and
`primitive` submodules.

Test Plan: Validate

Reviewers: simonpj, simonmar, hvr, goldfire, alanz

Reviewed By: simonmar

Subscribers: goldfire, rwbarton, thomie, mpickering, carter

Differential Revision: https://phabricator.haskell.org/D4761

1 files changed, 0 insertions, 10 deletions

diff --git a/compiler/hsSyn/HsInstances.hs b/compiler/hsSyn/HsInstances.hs
index 5833e17ff1..be72ec7939 100644
--- a/compiler/hsSyn/HsInstances.hs
+++ b/compiler/hsSyn/HsInstances.hs
@@ -209,16 +209,6 @@ deriving instance Data (RuleBndr GhcPs)
 deriving instance Data (RuleBndr GhcRn)
 deriving instance Data (RuleBndr GhcTc)
 
--- deriving instance (DataIdLR p p) => Data (VectDecl p)
-deriving instance Data (VectDecl GhcPs)
-deriving instance Data (VectDecl GhcRn)
-deriving instance Data (VectDecl GhcTc)
-
-deriving instance Data (VectTypePR GhcPs)
-deriving instance Data (VectTypePR GhcRn)
-deriving instance Data (VectClassPR GhcPs)
-deriving instance Data (VectClassPR GhcRn)
-
 -- deriving instance (DataId p)     => Data (WarnDecls p)
 deriving instance Data (WarnDecls GhcPs)
 deriving instance Data (WarnDecls GhcRn)