Do not keep MappedFile fd opened

According to the mmap man page this is not necessary, and this avoids
exposing the fd.

1 files changed, 0 insertions, 1 deletions

diff --git a/src/file.hh b/src/file.hh
index b1dd0bcd..7f30c0b2 100644
--- a/src/file.hh
+++ b/src/file.hh
@@ -49,7 +49,6 @@ struct MappedFile
 
     operator StringView() const;
 
-    int fd;
     const char* data;
     struct stat st {};
 };