Finish clock example

wgpu/src/shader/triangle.vert

@@ -7,11 +7,9 @@ layout(location = 0) out vec4 o_Color;
 
 layout (set = 0, binding = 0) uniform Globals {
     mat4 u_Transform;
-    float u_Scale;
 };
 
 void main() {
-    vec2 p_Position = i_Position * u_Scale;
-    gl_Position = u_Transform * vec4(p_Position, 0.0, 1.0);
+    gl_Position = u_Transform * vec4(i_Position, 0.0, 1.0);
     o_Color = i_Color;
 }