remove 5.4 browser kit test extension
remove 5.4 browser kit test extension

jonphipps/Metadata-Registry,jonphipps/Metadata-Registry,jonphipps/Metadata-Registry,jonphipps/Metadata-Registry,jonphipps/Metadata-Registry,jonphipps/Metadata-Registry,jonphipps/Metadata-Registry,jonphipps/Metadata-Registry,jonphipps/Metadata-Registry,jonphipps/Metadata-Registry