Remove #version from GLSL constants... only the version string should be used.

src/constants.js

@@ -196,5 +196,5 @@ export const StaticCopyUsage = 35046;
 export const DynamicCopyUsage = 35050;
 export const StreamCopyUsage = 35042;
 
-export const GLSL1 = "#version 100 es";
-export const GLSL3 = "#version 300 es";
+export const GLSL1 = "100";
+export const GLSL3 = "300 es";