diff --git a/src/requests/cookies.py b/src/requests/cookies.py
index f69d0cda9e..99557a6d20 100644
--- a/src/requests/cookies.py
+++ b/src/requests/cookies.py
@@ -347,12 +347,6 @@ def __delitem__(self, name):
         remove_cookie_by_name(self, name)
 
     def set_cookie(self, cookie, *args, **kwargs):
-        if (
-            hasattr(cookie.value, "startswith")
-            and cookie.value.startswith('"')
-            and cookie.value.endswith('"')
-        ):
-            cookie.value = cookie.value.replace('\\"', "")
         return super().set_cookie(cookie, *args, **kwargs)
 
     def update(self, other):