Remove unused code, get tests passing on Travis

src/ol/webgl/shaderlocations.mustache

@@ -1,8 +1,7 @@
 // This file is automatically generated, do not edit
-goog.provide('{{namespace}}.Locations');
-
-goog.require('ol');
+// Run `make shaders` to generate, and commit the result.
 
+import _ol_ from '../../../index.js';
 
 /**
  * @constructor
@@ -10,14 +9,14 @@ goog.require('ol');
  * @param {WebGLProgram} program Program.
  * @struct
  */
-{{namespace}}.Locations = function(gl, program) {
+{{namespace}}_Locations_ = function(gl, program) {
 {{#uniforms}}
 
   /**
    * @type {WebGLUniformLocation}
    */
   this.{{originalName}} = gl.getUniformLocation(
-      program, ol.DEBUG_WEBGL ? '{{originalName}}' : '{{shortName}}');
+      program, _ol_.DEBUG_WEBGL ? '{{originalName}}' : '{{shortName}}');
 {{/uniforms}}
 {{#attributes}}
 
@@ -25,6 +24,8 @@ goog.require('ol');
    * @type {number}
    */
   this.{{originalName}} = gl.getAttribLocation(
-      program, ol.DEBUG_WEBGL ? '{{originalName}}' : '{{shortName}}');
+      program, _ol_.DEBUG_WEBGL ? '{{originalName}}' : '{{shortName}}');
 {{/attributes}}
 };
+
+export default {{namespace}}_Locations_;