Simplified trait bounds in arithmetics

[jorgecarleitao]

No semantic changes, just a minor cleanup.

[codecov]

Codecov Report

Merging #671 (f400cee) into main (2b86bc9) will increase coverage by 0.00%.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #671   +/-   ##
=======================================
  Coverage   69.60%   69.61%           
=======================================
  Files         301      301           
  Lines       16765    16765           
=======================================
+ Hits        11670    11671    +1     
+ Misses       5095     5094    -1     

Impacted Files	Coverage Δ
src/compute/arithmetics/basic/add.rs	89.36% <ø> (ø)
src/compute/arithmetics/basic/div.rs	77.96% <ø> (ø)
src/compute/arithmetics/basic/mul.rs	89.36% <ø> (ø)
src/compute/arithmetics/basic/pow.rs	100.00% <ø> (ø)
src/io/parquet/read/nested_utils.rs	78.43% <0.00%> (+0.98%)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 2b86bc9...f400cee. Read the comment docs.