fix(nvidia): remove warning log when no GPU detected

The warning log was removed from the error case in has_nvidia_gpu() function
as it was producing false positives. The function now silently returns false
when nvidia-smi is not available or no NVIDIA GPU is detected, which is the
expected behavior for the fallback case.

src/nvidia/mod.rs

@@ -41,7 +41,6 @@ pub fn has_nvidia_gpu() -> bool {
     {
         Ok(output) => output.status.success(),
         Err(_) => {
-            warn!("No NVIDIA GPU detected or nvidia-smi not available");
             false
         }
     }