Revert "Distinguish "Submit" button from reply with color"

This reverts commit 7c539779134c8561b6e4553289d3c7c44fb61dbb.

Reason for revert: Moving the reply button. This will be in conjunction
  with a second change.

Change-Id: I9fae872f17d71ec0b3380572d26eff4635ac95d6
diff --git a/polygerrit-ui/app/elements/change/gr-change-actions/gr-change-actions.html b/polygerrit-ui/app/elements/change/gr-change-actions/gr-change-actions.html
index 8007993..8fffa04 100644
--- a/polygerrit-ui/app/elements/change/gr-change-actions/gr-change-actions.html
+++ b/polygerrit-ui/app/elements/change/gr-change-actions/gr-change-actions.html
@@ -52,11 +52,6 @@
         /* px because don't have the same font size */
         margin-left: 12px;
       }
-      gr-button[data-action-key='submit'] {
-        --gr-button-background: #f67070;
-        --gr-button-color: #fff;
-        --gr-button-hover-background-color: #dc5151;
-      }
       #actionLoadingMessage {
         align-items: center;
         color: #777;
diff --git a/polygerrit-ui/app/elements/shared/gr-button/gr-button.html b/polygerrit-ui/app/elements/shared/gr-button/gr-button.html
index 6918f30..a56394e 100644
--- a/polygerrit-ui/app/elements/shared/gr-button/gr-button.html
+++ b/polygerrit-ui/app/elements/shared/gr-button/gr-button.html
@@ -75,7 +75,7 @@
       /* styles for raised buttons specifically*/
       :host([primary]) paper-button[raised],
       :host([secondary]) paper-button[raised] {
-        background-color: var(--gr-button-background, --color-link);
+        background-color: var(--color-link);
         color: #fff;
       }
       :host([primary]) paper-button[raised]:hover,