Clean up redundant warnings in tests/float_tex.cpp

tests/float_tex.cpp

@@ -117,9 +117,11 @@ static void gl_init(void) {
     /* Get the locations of the uniforms so we can access them */
     nodeSamplerLocation      = glGetUniformLocation(program, "nodeInfo");
     glBindAttribLocation(program, 0, "indices");
+#ifndef __EMSCRIPTEN__ // GLES2 & WebGL do not have these, only pre 3.0 desktop GL and compatibility mode GL3.0+ GL do.
     //Enable glPoint size in shader, always enable in Open Gl ES 2.
     glEnable(GL_VERTEX_PROGRAM_POINT_SIZE);
     glEnable(GL_POINT_SPRITE);
+#endif
 }
 int main(int argc, char *argv[]) {
     glutInit(&argc, argv);