Remove Prolog section whose content can be found on the wiki

src/docs/chapter/user/52_Prolog/00_section_header.adoc

...docs/chapter/user/52_Prolog/Building_ProB_on_Windows.adoc

src/docs/chapter/user/52_Prolog/Getting_Involved.adoc

.../chapter/user/52_Prolog/Organization_of_ProB_Sources.adoc

.../chapter/user/52_Prolog/ProB's_Prolog_Datastructures.adoc

...docs/chapter/user/52_Prolog/Prolog_Coding_Guidelines.adoc

...docs/chapter/user/52_Prolog/Running_ProB_from_source.adoc

src/docs/chapter/user/52_Prolog/Why_Prolog.adoc

src/docs/chapter/user/52_Prolog/ZZ_section_footer.adoc