mshtml: Remove a double-Release.
diff --git a/dlls/mshtml/nsio.c b/dlls/mshtml/nsio.c
index d63e61e..901b5b9 100644
--- a/dlls/mshtml/nsio.c
+++ b/dlls/mshtml/nsio.c
@@ -1518,9 +1518,6 @@
         }
     }
 
-    if(This->post_data_stream)
-        nsIInputStream_Release(This->post_data_stream);
-
     if(aContentLength != -1)
         FIXME("Unsupported acontentLength = %s\n", wine_dbgstr_longlong(aContentLength));