Refactor/remove lambda parameter

[hsloot]

Related issues

Closes/Fixes #81

Checklist

• [x] R CMD CHECK successful
• [x] tests included
• [x] documentation included or updated
• [x] commit messages follow commit guidelines

Only for new or refactored algorithms:

• [x] benchmarks (and comparison with the previous version) included

Optional, but recommended:

• [x] code passes lintr::lint_package() without errors

[codecov[bot]]

Codecov Report

Merging #100 (28d8b1d) into master (853d32f) will decrease coverage by 1.05%. The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #100      +/-   ##
==========================================
- Coverage   91.85%   90.80%   -1.06%     
==========================================
  Files          32       32              
  Lines        1351     1250     -101     
==========================================
- Hits         1241     1135     -106     
- Misses        110      115       +5     

Impacted Files	Coverage Δ
R/allShow-S4.R	0.00% <ø> (ø)
R/allInitialize-S4.R	100.00% <100.00%> (ø)
R/levyDensity-S4.R	100.00% <100.00%> (ø)
R/valueOf-S4.R	93.20% <100.00%> (ø)
src/sample.cpp	93.10% <0.00%> (-6.90%)	:arrow_down:
...e/rmolib/random/univariate/pareto_distribution.hpp	92.10% <0.00%> (-5.52%)	:arrow_down:
...ib/random/univariate/uniform_real_distribution.hpp	92.10% <0.00%> (-3.14%)	:arrow_down:
...lib/random/univariate/exponential_distribution.hpp	96.96% <0.00%> (-3.04%)	:arrow_down:
...lib/random/multivariate/lfm_extmo_distribution.hpp	96.70% <0.00%> (-1.41%)	:arrow_down:
...lib/random/multivariate/arnold_mo_distribution.hpp	91.89% <0.00%> (-0.97%)	:arrow_down:
... and 9 more

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