Remove CSS that was causing change list to render at 11px font

+ Also makes anchor links block display to increase their hit targets.

Change-Id: I66ea07b1c125b1f80df2aafece4a5254efd51bdb

polygerrit-ui/app/elements/change-list/gr-change-list-item/gr-change-list-item.html

@@ -41,6 +41,7 @@ limitations under the License.
       }
       a {
         color: var(--default-text-color);
+        display: block;
         text-decoration: none;
       }
       a:hover {

polygerrit-ui/app/styles/gr-change-list-styles.html

@@ -85,9 +85,6 @@ limitations under the License.
         width: 2.6em;
         text-align: center;
       }
-      :host {
-        font-size: 11px;
-      }
       @media only screen and (max-width: 50em) {
         :host {
           font-size: 14px;