#56 spef_extractor: remove unused files Pull request opened by tgingold Many files in lef_def_parser/ are not used by the spef_extractor. This clarifies was is indeed used (and also save a little bit disk space). This increases the divergence with the upstream lef_def_parser, but the latter hasn't been updated for years and the remaining files (lef and def parser) are not that complex. efabless/openlane Travis CI: Build Created