readd missing text-primary. remove unused svg styles

app/assets/stylesheets/framework/common.scss

@@ -13,6 +13,11 @@
   color: $gl-text-color-secondary;
 }
 
+.text-primary,
+.text-primary:hover {
+  color: $brand-primary;
+}
+
 .text-success,
 .text-success:hover {
   color: $brand-success;

app/assets/stylesheets/pages/notes.scss

@@ -780,12 +780,6 @@ ul.notes {
     }
   }
 
-  svg {
-    fill: currentColor;
-    height: 16px;
-    width: 16px;
-  }
-
   .loading {
     margin: 0;
     height: auto;