guard against multimodal_input being None

Signed-off-by: john calderon <jcalderon@nvidia.com>

Author: johncalesp

tensorrt_llm/_torch/models/modeling_qwen2vl.py

@@ -259,7 +259,6 @@ def resize_image(self, width, height):
 
     def get_prompt_for_profiling(self):
         "Send prompt with largest image resolution for profiling the worst case"
-        "during profiling"
         max_width = 9999999
         max_height = 9999999
         img_width, img_height = self.resize_image(width=max_width,