browser: drop unused agent version metadata

diff --git a/tools/mkcaniuse b/tools/mkcaniuse
index 2c6c6a254d5c77d529a4c73ea241d86dfde85f71..2d9759e9d6895674050d0dcd5adca55ca867cfe7 100755 (executable)
--- a/tools/mkcaniuse
+++ b/tools/mkcaniuse
@@ -30,6 +30,10 @@ for (values %{ $data->{data} }) {
 }
 for (values %{ $data->{agents} }) {
        delete $_->{usage_global};
+       for (@{ $_->{version_list} }) {
+               delete $_->{era};
+               delete $_->{prefix} unless $_->{prefix};
+       }
 }
 
 while (my ($browser, $target) = each %BROWSERJOIN) {