Removed un-needed unsafe

[jorgecarleitao]

Replaced by an extra O(1) clone.

[codecov]

Codecov Report

Merging #843 (42e625e) into main (2c4dbb2) will increase coverage by 0.28%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main     #843      +/-   ##
==========================================
+ Coverage   71.55%   71.84%   +0.28%     
==========================================
  Files         326      327       +1     
  Lines       17643    18130     +487     
==========================================
+ Hits        12624    13025     +401     
- Misses       5019     5105      +86     

Impacted Files	Coverage Δ
src/compute/arithmetics/mod.rs	69.81% <ø> (ø)
src/compute/arithmetics/basic/div.rs	82.35% <100.00%> (+4.38%)	⬆️
src/compute/arithmetics/basic/rem.rs	91.11% <100.00%> (+6.20%)	⬆️
src/io/avro/write/serialize.rs	80.21% <0.00%> (-1.60%)	⬇️
src/io/ipc/read/stream_async.rs	62.65% <0.00%> (ø)
src/io/parquet/read/binary/basic.rs	79.41% <0.00%> (+0.03%)	⬆️
src/array/utf8/mutable.rs	81.12% <0.00%> (+0.09%)	⬆️
src/io/parquet/read/utils.rs	80.41% <0.00%> (+0.24%)	⬆️
src/bitmap/immutable.rs	88.34% <0.00%> (+0.54%)	⬆️
src/io/parquet/read/dictionary.rs	61.85% <0.00%> (+0.67%)	⬆️
... and 6 more

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