window.c: Just use float instead of GLfloat, remove GLES2.h include
diff --git a/clients/eventdemo.c b/clients/eventdemo.c
index 3189497..345a8ee 100644
--- a/clients/eventdemo.c
+++ b/clients/eventdemo.c
@@ -238,7 +238,7 @@
  */
 static int
 motion_handler(struct widget *widget, struct input *input, uint32_t time,
-	       GLfloat x, GLfloat y, void *data)
+	       float x, float y, void *data)
 {
 	struct eventdemo *e = data;