solver: remove redundant spawn imports

We're using Qspawn, now

diff --git a/lib/PublicInbox/SolverGit.pm b/lib/PublicInbox/SolverGit.pm
index 81f99025cb08d7a881f60d72c2467889c5c94d61..58869ffb3677c66432dbcebe9a7ea6684db9dc07 100644 (file)
--- a/lib/PublicInbox/SolverGit.pm
+++ b/lib/PublicInbox/SolverGit.pm
@@ -13,7 +13,6 @@ use warnings;
 use File::Temp qw();
 use Fcntl qw(SEEK_SET);
 use PublicInbox::Git qw(git_unquote git_quote);
-use PublicInbox::Spawn qw(spawn popen_rd);
 use PublicInbox::MsgIter qw(msg_iter msg_part_text);
 use PublicInbox::Qspawn;
 use URI::Escape qw(uri_escape_utf8);