Revert multiple commits

This reverts multiple commits from Simon:

  - 04a484eafc9eb9f8774b4bdd41a5dc6c9f640daf Test Trac #10359
  - a9ccd37add8315e061c02e5bf26c08f05fad9ac9 Test Trac #10403
  - c0aae6f699cbd222d826d0b8d78d6cb3f682079e Test Trac #10248
  - eb6ca851f553262efe0824b8dcbe64952de4963d Make the "matchable-given" check happen first
  - ca173aa30467a0b1023682d573fcd94244d85c50 Add a case to checkValidTyCon
  - 51cbad15f86fca1d1b0e777199eb1079a1b64d74 Update haddock submodule
  - 6e1174da5b8e0b296f5bfc8b39904300d04eb5b7 Separate transCloVarSet from fixVarSet
  - a8493e03b89f3b3bfcdb6005795de050501f5c29 Fix imports in HscMain (stage2)
  - a154944bf07b2e13175519bafebd5a03926bf105 Two wibbles to fix the build
  - 5910a1bc8142b4e56a19abea104263d7bb5c5d3f Change in capitalisation of error msg
  - 130e93aab220bdf14d08028771f83df210da340b Refactor tuple constraints
  - 8da785d59f5989b9a9df06386d5bd13f65435bc0 Delete commented-out line

These break the build by causing Haddock to fail mysteriously when
trying to examine GHC.Prim it seems.

1 files changed, 0 insertions, 19 deletions

diff --git a/testsuite/tests/partial-sigs/should_compile/T10403.hs b/testsuite/tests/partial-sigs/should_compile/T10403.hs
deleted file mode 100644
index a33646da5d..0000000000
--- a/testsuite/tests/partial-sigs/should_compile/T10403.hs
+++ /dev/null
@@ -1,19 +0,0 @@
-{-# LANGUAGE PartialTypeSignatures #-}
-module T10403 where
-
-data I a = I a
-instance Functor I where
-    fmap f (I a) = I (f a)
-
-newtype B t a = B a
-instance Functor (B t) where
-    fmap f (B a) = B (f a)
-
-newtype H f = H (f ())
-
-app :: H (B t)
-app = h (H . I) (B ())
-
-h :: _ => _
---h :: Functor m => (a -> b) -> m a -> H m
-h f b = (H . fmap (const ())) (fmap f b)