Remove cmake-related files

[giordano]

Follow-up to JuliaAstro/SPICEBuilder#1

[coveralls]

Pull Request Test Coverage Report for Build 119

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 82.792%

---

Totals
Change from base Build 115:	0.0%
Covered Lines:	433
Relevant Lines:	523

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💛 - Coveralls

[codecov-io]

Codecov Report

Merging #6 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master       #6   +/-   ##
=======================================
  Coverage   82.79%   82.79%           
=======================================
  Files          23       23           
  Lines         523      523           
=======================================
  Hits          433      433           
  Misses         90       90

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