MD Settings: minor cleanup for settings-input

chrome/browser/resources/settings/controls/settings_input.js

Index: chrome/browser/resources/settings/controls/settings_input.js
diff --git a/chrome/browser/resources/settings/controls/settings_input.js b/chrome/browser/resources/settings/controls/settings_input.js
index 3796fdecfc542cf9eb965d798c2d8aa0f1901fbd..0031a07e242dfa2b87d8bc63595c1096e5a00f19 100644
--- a/chrome/browser/resources/settings/controls/settings_input.js
+++ b/chrome/browser/resources/settings/controls/settings_input.js
@@ -112,15 +112,10 @@ Polymer({
    */
   onKeydown_: function(event) {
     // If pressed enter when input is invalid, do not trigger on-change.
-    if (event.key == 'Enter' && this.invalid) {
+    if (event.key == 'Enter' && this.invalid)
       event.preventDefault();
-      return;
-    }
-
-    if (event.key != 'Escape')
-      return;
-
-    this.resetValue_();
+    else if (event.key == 'Escape')
+      this.resetValue_();
   },
 
   /**