[docs] Quicktour fixes (huggingface#5211)

* fix

* feedback

Author: stevhliu

src/diffusers/pipelines/pipeline_flax_utils.py

@@ -280,9 +280,7 @@ def from_pretrained(cls, pretrained_model_name_or_path: Optional[Union[str, os.P
         <Tip>
 
         To use private or [gated models](https://huggingface.co/docs/hub/models-gated#gated-models), log-in with
-        `huggingface-cli login`. You can also activate the special
-        [“offline-mode”](https://huggingface.co/diffusers/installation.html#offline-mode) to use this method in a
-        firewalled environment.
+        `huggingface-cli login`.
 
         </Tip>