Revert "Add alert message component and documentation"

This reverts commit 71650fff20c0ad29eb05d770736386863324b64e.

Reason for revert: Found an issue with Sass loader when compiling docs that needs to be addressed.

Change-Id: Icdd1243665f60849bfb341594452687fcdaeebe2
diff --git a/docs/.vuepress/config.js b/docs/.vuepress/config.js
index abcbeb9..5a8e601 100644
--- a/docs/.vuepress/config.js
+++ b/docs/.vuepress/config.js
@@ -42,10 +42,7 @@
           },
           {
             title: "Components",
-            children: [
-            "/guide/components/",
-            "/guide/components/alert",
-          ]
+            children: ["/guide/components/", "/guide/components/page-section"]
           }
         ],
         "/themes/": [""]