Drop README.pyramid.rst file It has been kept since 3.24 when we merged pyramid-cubicweb and cubicweb-pyramid repositories into cubicweb's one waiting for someone to move the information in some canonical place but this never happened and this information is probably not so useful or already existing elsewhere. So just drop the file.

cubicweb source: source-is-missing cubicweb/web/data/jquery.flot.js line length is * characters (>512)