Revert "SCAL-347: new initializer - ensure AlgDesign package"

Reverts Scalarm/scalarm_experiment_manager#27 because it causes problems on some machines:

Warning in install.packages("AlgDesign", repos = "http://cran.rstudio.com/",  :
  'lib = "/usr/lib64/R/library"' is not writable
^C
Warning message:

In library(package, lib.loc = lib.loc, character.only = TRUE, logical.return = TRUE,  :
  there is no package called ‘AlgDesign’