Switch back to use the default search of include path

since slang has been fixed to add current dir as one of the default search path.

Change-Id: Id3e80955ce445f155fc518927974be7986daff1f

libs/rs/java/Fountain/src/com/android/fountain/fountain.rs

@@ -3,9 +3,9 @@
 
 #pragma rs java_package_name(com.android.fountain)
 
-#include "../../../../../../scriptc/rs_types.rsh"
-#include "../../../../../../scriptc/rs_math.rsh"
-#include "../../../../../../scriptc/rs_graphics.rsh"
+#include "rs_types.rsh"
+#include "rs_math.rsh"
+#include "rs_graphics.rsh"
 
 static int newPart = 0;
 rs_mesh partMesh;