[codemod][lowrisk] Remove unused exception parameter from multifeed/leaf5/common/lib/OpenBarUtils.cpp

Summary:
`-Wunused-exception-parameter` has identified an unused exception parameter. This diff removes it.

This:
```
try {
    ...
} catch (exception& e) {
    // no use of e
}
```
should instead be written as
```
} catch (exception&) {
```

If the code compiles, this is safe to land.

Differential Revision: D87467931

Author: r-barnes

src/torchcodec/_core/SingleStreamDecoder.cpp

@@ -1039,7 +1039,7 @@ AudioFramesOutput SingleStreamDecoder::getFramesPlayedInRangeAudio(
         firstFramePtsSeconds = frameOutput.ptsSeconds;
       }
       frames.push_back(frameOutput.data);
-    } catch (const EndOfFileException& e) {
+    } catch (const EndOfFileException&) {
       finished = true;
     }