Remove unused colors from color palette

The color palette has been stripped down to a
maximum of two colors shades per palette. This
works for our design since components use a
base color with a lighter color as an accent
color. This change reduces the amount of CSS
generated by Bootstrap when the CSS is compiled.

Github Story: https://github.com/openbmc/webui-vue/issues/2

Signed-off-by: Derick Montague <derick.montague@ibm.com>
Change-Id: I2ddb37f5c89c749a7303799c6f7499ddd83d5a92
diff --git a/src/assets/styles/_table.scss b/src/assets/styles/_table.scss
index 069a37c..528cb80 100644
--- a/src/assets/styles/_table.scss
+++ b/src/assets/styles/_table.scss
@@ -13,6 +13,6 @@
 .thead-light.thead-light {
   th {
     border: none;
-    color: $gray-900;
+    color: $dark;
   }
 }
\ No newline at end of file