hiding xblocks workbench log and banner temporarily for local proofing

apps/openassessment/xblock/static/sass/oa/utilities/_developer.scss

@@ -18,6 +18,9 @@
   border: none;
 }
 
+.workbench .debug, .workbench header.banner {
+  display: none;
+}
 
 // --------------------
 // Views: Static HTML Page Display
@@ -26,64 +29,3 @@
   background: $bg-view;
   margin: ($baseline-v*2) $baseline-h;
 }
-
-.wrapper--xblock {
-  // typography tests
-  .h1 {
-    @extend %hd-1;
-  }
-
-  .h2 {
-    @extend %hd-2;
-  }
-
-  .h3 {
-    @extend %hd-3;
-  }
-
-  .h4 {
-    @extend %hd-4;
-  }
-
-  .h5 {
-    @extend %hd-5;
-  }
-
-  .h6 {
-    @extend %hd-6;
-  }
-
-  .h7 {
-    @extend %hd-7;
-  }
-
-  .h8 {
-    @extend %hd-8;
-  }
-
-  .copy-1 {
-    @extend %copy-1;
-  }
-
-  .copy-2 {
-    @extend %copy-2;
-  }
-
-  .copy-3 {
-    @extend %copy-3;
-  }
-
-  .copy-4 {
-    @extend %copy-4;
-  }
-
-  .copy-5 {
-    @extend %copy-5;
-  }
-
-  .copy-6 {
-    @extend %copy-6;
-  }
-}
-
-// temp