Remove "Codementor". All usernames come back as unclaimed.

data.json

@@ -344,14 +344,6 @@
     "username_claimed": "blue",
     "username_unclaimed": "noonewouldeverusethis7"
   },
-  "Codementor": {
-    "errorType": "status_code",
-    "rank": 10252,
-    "url": "https://www.codementor.io/{}",
-    "urlMain": "https://www.codementor.io/",
-    "username_claimed": "blue",
-    "username_unclaimed": "noonewouldeverusethis7"
-  },
   "Coderwall": {
     "errorMsg": "404! Our feels when that url is used",
     "errorType": "message",

data_bad_site.json

@@ -14,6 +14,14 @@
     "url": "http://blackplanet.com/{}",
     "urlMain": "http://blackplanet.com/"
   },
+  "Codementor": {
+    "errorType": "status_code",
+    "rank": 10252,
+    "url": "https://www.codementor.io/@{}",
+    "urlMain": "https://www.codementor.io/",
+    "username_claimed": "blue",
+    "username_unclaimed": "noonewouldeverusethis7"
+  },
   "Codepen": {
     "errorType": "status_code",
     "rank": 1359,

removed_sites.md

@@ -6,6 +6,21 @@ They are listed here in the hope that things may change in the future
 so they may be re-included.
 
 
+## Codementor
+
+As of 2019-12-31, usernames that exist are not detected.
+
+```
+  "Codementor": {
+    "errorType": "status_code",
+    "rank": 10252,
+    "url": "https://www.codementor.io/@{}",
+    "urlMain": "https://www.codementor.io/",
+    "username_claimed": "blue",
+    "username_unclaimed": "noonewouldeverusethis7"
+  },
+```
+
 ## KiwiFarms
 
 As of 2019-12-31, the site gives a 403 for all usernames.  You have to