remove precompile statement

[musm]

No description provided.

[codecov-io]

Codecov Report

Merging #30 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master      #30   +/-   ##
=======================================
  Coverage   75.51%   75.51%           
=======================================
  Files           5        5           
  Lines         147      147           
=======================================
  Hits          111      111           
  Misses         36       36

Impacted Files	Coverage Δ
src/Observables.jl	71.23% <ø> (ø)	⬆️

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