Revert "support for 'half' types in sksl, plus general numeric type improvements"

This reverts commit 93061b53442ce303e9d3ef74c7eeddc034802c4f.

Reason for revert: bot failures

Original change's description:
> support for 'half' types in sksl, plus general numeric type improvements
> 
> Bug: skia:
> Change-Id: Id285262fda8291847f11343d499b5df62ddb4b09
> Reviewed-on: https://skia-review.googlesource.com/28980
> Reviewed-by: Brian Salomon <bsalomon@google.com>
> Commit-Queue: Ethan Nicholas <ethannicholas@google.com>

TBR=bsalomon@google.com,ethannicholas@google.com

Change-Id: Ie8672271d35b9fcdf567f8bc3674084748be66ad
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: skia:
Reviewed-on: https://skia-review.googlesource.com/29600
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>

1 files changed, 0 insertions, 7 deletions

diff --git a/src/sksl/ir/SkSLIntLiteral.h b/src/sksl/ir/SkSLIntLiteral.h
index 6199f96610..d8eba5573a 100644
--- a/src/sksl/ir/SkSLIntLiteral.h
+++ b/src/sksl/ir/SkSLIntLiteral.h
@@ -40,13 +40,6 @@ struct IntLiteral : public Expression {
         return fValue == i.fValue;
     }
 
-    int coercionCost(const Type& target) const override {
-        if (target.isUnsigned()) {
-            return 0;
-        }
-        return INHERITED::coercionCost(target);
-    }
-
     const int64_t fValue;
 
     typedef Expression INHERITED;