Remove third_party/polymer from .gitignore

third_party/polymer/v1_0/components/iron-form-element-behavior/bower.json

Index: third_party/polymer/v1_0/components/iron-form-element-behavior/bower.json
diff --git a/third_party/polymer/v1_0/components/iron-form-element-behavior/bower.json b/third_party/polymer/v1_0/components/iron-form-element-behavior/bower.json
deleted file mode 100644
index 357b57f5bc117a4f1dca004ecbd1bf8d6eca9be3..0000000000000000000000000000000000000000
--- a/third_party/polymer/v1_0/components/iron-form-element-behavior/bower.json
+++ /dev/null
@@ -1,28 +0,0 @@
-{
-  "name": "iron-form-element-behavior",
-  "version": "1.0.3",
-  "license": "http://polymer.github.io/LICENSE.txt",
-  "private": true,
-  "main": "iron-form-element-behavior.html",
-  "authors": "The Polymer Authors",
-  "description": "Enables a custom element to be included in an iron-form",
-  "keywords": [
-    "web-components",
-    "polymer",
-    "form"
-  ],
-  "repository": {
-    "type": "git",
-    "url": "git://github.com/PolymerElements/iron-form-element-behavior.git"
-  },
-  "dependencies": {
-    "polymer": "Polymer/polymer#^1.0.0"
-  },
-  "devDependencies": {
-    "iron-component-page": "PolymerElements/iron-component-page#^1.0.0",
-    "test-fixture": "PolymerElements/test-fixture#^1.0.0",
-    "web-component-tester": "*",
-    "webcomponentsjs": "webcomponents/webcomponentsjs#^0.7.0",
-    "paper-styles": "PolymerElements/paper-styles#^1.0.0"
-  }
-}