Revert "Scilab: add Scilab in makefile check version targets"

This reverts commit 66edc244b94d7bf76d658c3477c43d9ed5d4829c.
Revert "Scilab: fix debug infos in config.log"

This reverts commit 2f910faebbc7b1239397970054f80e3ce44fd3e5.
Revert "Scilab: support of Scilab 5.3.3"

This reverts commit d6eb7323b6879f76a177733a561e4691e67688ac.
Scilab: check Scilab version & support of Scilab 5.3.3 (program arguments)
Scilab: support of Scilab 5.3.3 (api_scilab: Rhs, Lhs, ..)