removed gph-math, will use a c library

[vkrt] / submodules / gph-math

diff --git a/submodules/gph-math b/submodules/gph-math
deleted file mode 160000 (submodule)
index ea872e7..0000000
--- a/submodules/gph-math
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit ea872e7b9c2d1c6bcc7c0d88018bb7aa1effee97