[SPARK-46654][DOCS][FOLLOW-UP] Remove obsolete TODO item

### What changes were proposed in this pull request?
Remove obsolete TODO item

### Why are the changes needed?
the `Example 2` test had been already enabled

### Does this PR introduce _any_ user-facing change?
No

### How was this patch tested?
CI

### Was this patch authored or co-authored using generative AI tooling?
No

Closes apache#47312 from zhengruifeng/simple_folloup.

Authored-by: Ruifeng Zheng <ruifengz@apache.org>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>

python/pyspark/sql/functions/builtin.py

@@ -16509,8 +16509,6 @@ def schema_of_csv(csv: Union[Column, str], options: Optional[Dict[str, str]] = N
     return _invoke_function("schema_of_csv", col, _options_to_str(options))
 
 
-# TODO(SPARK-46654) Re-enable the `Example 2` test after fixing the display
-#  difference between Regular Spark and Spark Connect on `df.show`.
 @_try_remote_functions
 def to_csv(col: "ColumnOrName", options: Optional[Dict[str, str]] = None) -> Column:
     """