Remove unnecessary casts
diff --git a/src/hb-ot-layout-gsub-private.hh b/src/hb-ot-layout-gsub-private.hh
index ccc51e7..da32cb1 100644
--- a/src/hb-ot-layout-gsub-private.hh
+++ b/src/hb-ot-layout-gsub-private.hh
@@ -617,10 +617,10 @@
if (match_backtrack (context,
backtrack.len, (USHORT *) backtrack.array(),
- match_coverage, CharP(this)) &&
+ match_coverage, this) &&
match_lookahead (context,
lookahead.len, (USHORT *) lookahead.array(),
- match_coverage, CharP(this),
+ match_coverage, this,
1))
{
IN_CURGLYPH () = substitute[index];