tests: Remove GLfloat usage.

tests/matrix-test.c

@@ -22,7 +22,6 @@
 
 #include <stdio.h>
 #include <stdlib.h>
-#include <GLES2/gl2.h>
 #include <math.h>
 #include <unistd.h>
 #include <signal.h>
@@ -54,7 +53,7 @@ read_timer(void)
 }
 
 static double
-det3x3(const GLfloat *c0, const GLfloat *c1, const GLfloat *c2)
+det3x3(const float *c0, const float *c1, const float *c2)
 {
 	return (double)
 		c0[0] * c1[1] * c2[2] +

tests/surface-test.c

@@ -30,7 +30,7 @@
 TEST(surface_transform)
 {
 	struct weston_surface *surface;
-	GLfloat x, y;
+	float x, y;
 
 	surface = weston_surface_create(compositor);
 	weston_surface_configure(surface, 100, 100, 200, 200);

tests/test-client.c

@@ -27,7 +27,6 @@
 #include <assert.h>
 #include <poll.h>
 #include <wayland-client.h>
-#include <GLES2/gl2.h> /* needed for GLfloat */
 #include <linux/input.h>
 
 struct display {
@@ -42,7 +41,7 @@ struct input {
 	struct wl_seat *seat;
 	struct wl_pointer *pointer;
 	struct wl_keyboard *keyboard;
-	GLfloat x, y;
+	float x, y;
 	uint32_t button_mask;
 	struct surface *pointer_focus;
 	struct surface *keyboard_focus;