Merge "Remove _legacyUndefinedCheck"
diff --git a/gr-checks/gr-checks-chip-view.js b/gr-checks/gr-checks-chip-view.js
index ce7d6d5..1447942 100644
--- a/gr-checks/gr-checks-chip-view.js
+++ b/gr-checks/gr-checks-chip-view.js
@@ -66,7 +66,6 @@
 
   Polymer({
     is: 'gr-checks-chip-view',
-    _legacyUndefinedCheck: true,
 
     properties: {
       revision: Object,
diff --git a/gr-checks/gr-checks-item.js b/gr-checks/gr-checks-item.js
index 0f04f56..44198bc 100644
--- a/gr-checks/gr-checks-item.js
+++ b/gr-checks/gr-checks-item.js
@@ -23,7 +23,6 @@
 
   Polymer({
     is: 'gr-checks-item',
-    _legacyUndefinedCheck: true,
 
     properties: {
       /** @type {Defs.Check} */
diff --git a/gr-checks/gr-checks-status.js b/gr-checks/gr-checks-status.js
index 67ba4e4..908fde5 100644
--- a/gr-checks/gr-checks-status.js
+++ b/gr-checks/gr-checks-status.js
@@ -3,7 +3,6 @@
 
   Polymer({
     is: 'gr-checks-status',
-    _legacyUndefinedCheck: true,
 
     properties: {
       showText: {
diff --git a/gr-checks/gr-checks-view.js b/gr-checks/gr-checks-view.js
index c0d32a1..92c03cc 100644
--- a/gr-checks/gr-checks-view.js
+++ b/gr-checks/gr-checks-view.js
@@ -37,7 +37,6 @@
 
   Polymer({
     is: 'gr-checks-view',
-    _legacyUndefinedCheck: true,
 
     properties: {
       revision: Object,
diff --git a/gr-checks/gr-create-checkers-dialog.js b/gr-checks/gr-create-checkers-dialog.js
index cdb4127..2c0dd25 100644
--- a/gr-checks/gr-create-checkers-dialog.js
+++ b/gr-checks/gr-create-checkers-dialog.js
@@ -7,7 +7,6 @@
 
   Polymer({
     is: 'gr-create-checkers-dialog',
-    _legacyUndefinedCheck: true,
 
     properties: {
       checker: {
diff --git a/gr-checks/gr-repo-chip.js b/gr-checks/gr-repo-chip.js
index d63a476..65e85c5 100644
--- a/gr-checks/gr-repo-chip.js
+++ b/gr-checks/gr-repo-chip.js
@@ -6,7 +6,6 @@
    */
   Polymer({
     is: 'gr-repo-chip',
-    _legacyUndefinedCheck: true,
     properties: {
       // repo type is ProjectInfo
       repo: Object,