reduce allocations for (inv) hessians, more clean up

[chriscoey]

No description provided.

[codecov]

Codecov Report

Merging #698 (c658e56) into master (c956508) will decrease coverage by 0.01%.
The diff coverage is 99.35%.

@@            Coverage Diff             @@
##           master     #698      +/-   ##
==========================================
- Coverage   96.77%   96.76%   -0.02%     
==========================================
  Files          54       54              
  Lines        7995     7970      -25     
==========================================
- Hits         7737     7712      -25     
  Misses        258      258              

Impacted Files	Coverage Δ
src/Cones/epipersepspectral/epipersepspectral.jl	100.00% <ø> (ø)
src/Cones/hypoperlog.jl	99.52% <ø> (ø)
src/Cones/hypoperlogdettri.jl	99.19% <ø> (ø)
src/Cones/hyporootdettri.jl	98.98% <ø> (ø)
...c/Cones/possemideftrisparse/possemideftrisparse.jl	100.00% <ø> (ø)
src/Solvers/process.jl	95.36% <50.00%> (ø)
src/Cones/Cones.jl	98.30% <100.00%> (+0.26%)	⬆️
src/Cones/doublynonnegativetri.jl	99.00% <100.00%> (-0.03%)	⬇️
src/Cones/epinormeucl.jl	98.38% <100.00%> (-0.04%)	⬇️
src/Cones/epinorminf.jl	97.88% <100.00%> (+0.02%)	⬆️
... and 24 more

---

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 c956508...c658e56. Read the comment docs.