diff --git a/core/storage/pager.rs b/core/storage/pager.rs
index 90d9e5b74..ab5537043 100644
--- a/core/storage/pager.rs
+++ b/core/storage/pager.rs
@@ -1,4 +1,3 @@
-use crate::fast_lock::SpinLock;
 use crate::result::LimboResult;
 use crate::storage::btree::BTreePageInner;
 use crate::storage::buffer_pool::BufferPool;
diff --git a/core/storage/sqlite3_ondisk.rs b/core/storage/sqlite3_ondisk.rs
index 8b3832957..c12fc1406 100644
--- a/core/storage/sqlite3_ondisk.rs
+++ b/core/storage/sqlite3_ondisk.rs
@@ -287,60 +287,6 @@ impl DatabaseHeader {
     }
 }
 
-pub fn begin_read_database_header(
-    db_file: Arc<dyn DatabaseStorage>,
-) -> Result<Arc<SpinLock<DatabaseHeader>>> {
-    let drop_fn = Rc::new(|_buf| {});
-    #[allow(clippy::arc_with_non_send_sync)]
-    let buf = Arc::new(RefCell::new(Buffer::allocate(512, drop_fn)));
-    let result = Arc::new(SpinLock::new(DatabaseHeader::default()));
-    let header = result.clone();
-    let complete = Box::new(move |buf: Arc<RefCell<Buffer>>| {
-        let header = header.clone();
-        finish_read_database_header(buf, header).unwrap();
-    });
-    let c = Completion::Read(ReadCompletion::new(buf, complete));
-    #[allow(clippy::arc_with_non_send_sync)]
-    db_file.read_page(DATABASE_HEADER_PAGE_ID, Arc::new(c))?;
-    Ok(result)
-}
-
-fn finish_read_database_header(
-    buf: Arc<RefCell<Buffer>>,
-    header: Arc<SpinLock<DatabaseHeader>>,
-) -> Result<()> {
-    let buf = buf.borrow();
-    let buf = buf.as_slice();
-    let mut header = header.lock();
-    header.magic.copy_from_slice(&buf[0..16]);
-    header.page_size = u16::from_be_bytes([buf[16], buf[17]]);
-    header.write_version = buf[18];
-    header.read_version = buf[19];
-    header.reserved_space = buf[20];
-    header.max_embed_frac = buf[21];
-    header.min_embed_frac = buf[22];
-    header.min_leaf_frac = buf[23];
-    header.change_counter = u32::from_be_bytes([buf[24], buf[25], buf[26], buf[27]]);
-    header.database_size = u32::from_be_bytes([buf[28], buf[29], buf[30], buf[31]]);
-    header.freelist_trunk_page = u32::from_be_bytes([buf[32], buf[33], buf[34], buf[35]]);
-    header.freelist_pages = u32::from_be_bytes([buf[36], buf[37], buf[38], buf[39]]);
-    header.schema_cookie = u32::from_be_bytes([buf[40], buf[41], buf[42], buf[43]]);
-    header.schema_format = u32::from_be_bytes([buf[44], buf[45], buf[46], buf[47]]);
-    header.default_page_cache_size = i32::from_be_bytes([buf[48], buf[49], buf[50], buf[51]]);
-    if header.default_page_cache_size == 0 {
-        header.default_page_cache_size = DEFAULT_CACHE_SIZE;
-    }
-    header.vacuum_mode_largest_root_page = u32::from_be_bytes([buf[52], buf[53], buf[54], buf[55]]);
-    header.text_encoding = u32::from_be_bytes([buf[56], buf[57], buf[58], buf[59]]);
-    header.user_version = i32::from_be_bytes([buf[60], buf[61], buf[62], buf[63]]);
-    header.incremental_vacuum_enabled = u32::from_be_bytes([buf[64], buf[65], buf[66], buf[67]]);
-    header.application_id = u32::from_be_bytes([buf[68], buf[69], buf[70], buf[71]]);
-    header.reserved_for_expansion.copy_from_slice(&buf[72..92]);
-    header.version_valid_for = u32::from_be_bytes([buf[92], buf[93], buf[94], buf[95]]);
-    header.version_number = u32::from_be_bytes([buf[96], buf[97], buf[98], buf[99]]);
-    Ok(())
-}
-
 pub fn write_header_to_buf(buf: &mut [u8], header: &DatabaseHeader) {
     buf[0..16].copy_from_slice(&header.magic);
     buf[16..18].copy_from_slice(&header.page_size.to_be_bytes());