remove harfbuzz flag

Diffs=
8700c7365 remove harfbuzz flag (#7233)

.rive_head

diff --git a/.rive_head b/.rive_head
index f5a3b4c..17e0166 100644
--- a/.rive_head
+++ b/.rive_head
@@ -1 +1 @@
-e0c4d9a20df66b8bc43d7d2528caf432aa053ebb
+8700c736576bf50e591a4ba61c005907c398a908

submodules/rive-cpp

diff --git a/submodules/rive-cpp b/submodules/rive-cpp
index f8e8391..6573543 160000
--- a/submodules/rive-cpp
+++ b/submodules/rive-cpp
@@ -1 +1 @@
-Subproject commit f8e8391390ae89629fa5ff0211dc75f23e5c1079
+Subproject commit 657354303be0cc13dd8926f6863489964dc62f5c