Remove the obmc-custom style import

Importing the obmc-custom style adds over 700KB to the binary size. This
import was not there with Vue 2, so remove the import to restore the Vue
2 implementation and reduce the binary size.

Change-Id: I0a32003da26c5e1e055b952ca502190068f9960e
Signed-off-by: Jason M. Bills <jason.m.bills@intel.com>
diff --git a/vue.config.js b/vue.config.js
index 0fc5e6b..2fab59f 100644
--- a/vue.config.js
+++ b/vue.config.js
@@ -15,13 +15,11 @@
               @import "@/assets/styles/bmc/helpers";
               @import "@/env/assets/styles/_${envName}";
               @import "@/assets/styles/bootstrap/_helpers";
-              @import '@/assets/styles/_obmc-custom.scss';
             `;
           } else {
             return `
               @import "@/assets/styles/bmc/helpers";
               @import "@/assets/styles/bootstrap/_helpers";
-              @import '@/assets/styles/_obmc-custom.scss';
             `;
           }
         })(), // immediately invoked function expression (IIFE)