window.c: Just use float instead of GLfloat, remove GLES2.h include
diff --git a/clients/simple-touch.c b/clients/simple-touch.c
index 0dbf3db..bd5226a 100644
--- a/clients/simple-touch.c
+++ b/clients/simple-touch.c
@@ -205,8 +205,8 @@
 			       wl_fixed_t y_w)
 {
 	struct touch *touch = data;
-	GLfloat x = wl_fixed_to_double(x_w);
-	GLfloat y = wl_fixed_to_double(y_w);
+	float x = wl_fixed_to_double(x_w);
+	float y = wl_fixed_to_double(y_w);
 
 	touch_paint(touch, x, y, id);
 }
@@ -227,8 +227,8 @@
 				 wl_fixed_t y_w)
 {
 	struct touch *touch = data;
-	GLfloat x = wl_fixed_to_double(x_w);
-	GLfloat y = wl_fixed_to_double(y_w);
+	float x = wl_fixed_to_double(x_w);
+	float y = wl_fixed_to_double(y_w);
 
 	touch_paint(touch, x, y, id);
 }