diff --git a/core/utils.py b/core/utils.py
index ffb1521c22..8f10dd7dd2 100644
--- a/core/utils.py
+++ b/core/utils.py
@@ -142,18 +142,7 @@ def is_image_url(url: str, **kwargs) -> str:
             r"\1i.\2.png",
             url,
         )
-    elif url.startswith("https://imgur.com") or url.startswith("http://imgur.com"):
-        url = re.sub(
-            r"(http[s]?:\/\/)((?:[a-zA-Z]|[0-9]|[$-_@.&+]|[!*(),]|(?:%[0-9a-fA-F][0-9a-fA-F]))+)",
-            r"\1i.\2.jpg",
-            url,
-        )
-    elif url.startswith("https://tenor.com") or url.startswith("http://tenor.com"):
-        url = re.sub(
-            r"(http[s]?:\/\/)((?:[a-zA-Z]|[0-9]|[$-_@.&+]|[!*(),]|(?:%[0-9a-fA-F][0-9a-fA-F]))+)",
-            r"\1i.\2.gif",
-            url,
-        )
+
     return parse_image_url(url, **kwargs)