diff --git a/shaders/simple.glsl b/shaders/simple.glsl
deleted file mode 100644
index 4c293a1..0000000
--- a/shaders/simple.glsl
+++ /dev/null
@@ -1,23 +0,0 @@
-@vs vs
-in vec4 pos;
-in vec4 color0;
-
-out vec4 color;
-
-void main() {
-    gl_Position = pos;
-    color = color0;
-}
-@end
-
-@fs fs
-in vec4 color;
-out vec4 frag_color;
-
-void main() {
-    frag_color = color;
-}
-@end
-
-@program simple vs fs
-