Remove broken symlink

The `client_apps/canvas_quizzes/vendor/canvas_app` and
`client_apps/canvas_quizzes/www/font` symlinks don't point to anything.
That probably means they're safe to remove, along with anything that
references them.

Test plan:

- Build is green
- Canvas quizzes works (both with and without docker)
- Portal2 Canvas works

Change-Id: I6205b60d4e65b49ca03a732d249d603ca23609a5
Reviewed-on: https://gerrit.instructure.com/140796
Tested-by: Jenkins
Reviewed-by: Cody Cutrer <cody@instructure.com>
Reviewed-by: Bryan Petty <bpetty@instructure.com>
Reviewed-by: Ryan Shaw <ryan@instructure.com>
QA-Review: Bryan Petty <bpetty@instructure.com>
Product-Review: Bryan Petty <bpetty@instructure.com>

client_apps/canvas_quizzes/config/requirejs/development.js

@@ -46,8 +46,7 @@ requirejs.config({
 
     // ========================================================================
     // Internal, for package providers only:
-    'canvas': '../../../vendor/canvas_public/javascripts',
-    'canvas_app': '../../../vendor/canvas_app'
+    'canvas': '../../../vendor/canvas_public/javascripts'
   },
 
   shim: {

client_apps/canvas_quizzes/config/requirejs/test.js

@@ -41,8 +41,7 @@ requirejs.config({
 
     'test': '../test',
     'fixtures': '../test/fixtures',
-    'canvas_quizzes': '../../common/js',
-    'canvas_app': '../../vendor/canvas_app'
+    'canvas_quizzes': '../../common/js'
   },
 
   deps: [
@@ -85,4 +84,4 @@ requirejs.config({
       });
     }, go); // no app config file
   }
-});
+});

client_apps/canvas_quizzes/tasks/options/grunt-sass.js

@@ -20,10 +20,6 @@ module.exports = {
   dist: {
     options: {
       style: 'expanded',
-      includePaths: [
-        'vendor/canvas_app/stylesheets',
-        'vendor/canvas_app/stylesheets/variants/new_styles_normal_contrast'
-      ],
       outputStyle: 'nested'
     },
 
@@ -31,4 +27,4 @@ module.exports = {
       "dist/<%= grunt.config.get('pkg.name') %>.css": 'apps/common/css/main.scss',
     }
   }
-};
+};

client_apps/canvas_quizzes/vendor/canvas_app

@@ -1 +0,0 @@
-../../app/

client_apps/canvas_quizzes/www/font

@@ -1 +0,0 @@
-../../../public/font