Remove Imgur. Sherlock says that all usernames are available.

data.json

@@ -647,14 +647,6 @@
     "username_claimed": "blue",
     "username_unclaimed": "noonewouldeverusethis7"
   },
-  "Imgur": {
-    "errorType": "status_code",
-    "rank": 74,
-    "url": "https://imgur.com/user/{}",
-    "urlMain": "https://imgur.com/",
-    "username_claimed": "blue",
-    "username_unclaimed": "noonewouldeverusethis7"
-  },
   "Instagram": {
     "errorMsg": "The link you followed may be broken",
     "errorType": "message",

removed_sites.md

@@ -5,6 +5,23 @@ Sherlock is not capable of determining if a given username exists or not.
 They are listed here in the hope that things may change in the future
 so they may be re-included.
 
+
+## Imgur
+
+Looks like they made some changes to the site.  Sherlock says that all
+usernames are available.
+
+```
+  "Imgur": {
+    "errorType": "status_code",
+    "rank": 74,
+    "url": "https://imgur.com/user/{}",
+    "urlMain": "https://imgur.com/",
+    "username_claimed": "blue",
+    "username_unclaimed": "noonewouldeverusethis7"
+  },
+```
+
 ## PowerShell Gallery
 
 Accidentally merged even though the original pull request showed that all