CLN/PERF: remove catching of numpy deprecation warning in comparison_op
xref https://github.com/pandas-dev/pandas/issues/39146

In some of the `FrameWithFrameWide` benchmarks, this takes up around 15% of the time. 

While I don't think this should be needed (but let's see if warnings appear in the CI builds).
@jbrockmendel this warning filter was added in https://github.com/pandas-dev/pandas/pull/32779. AFAIU, the reason the warning turned up in that PR is because you started to perform ops blockwise (using a 2D numpy datetime64[ns] array), instead going through Series op (where we use the EA). 

`arithmetic_op` already calls `ensure_wrapped_if_datetimelike` on both left/right operands, so this makes `comparison_op` consistent with that (I know I would like to move out `ensure_wrapped_if_datetimelike` alltogether, but can be dealt with together with the other occurences later).