diff --git a/crates/haku/src/parser.rs b/crates/haku/src/parser.rs
index a64aad8..76c1ba1 100644
--- a/crates/haku/src/parser.rs
+++ b/crates/haku/src/parser.rs
@@ -536,47 +536,6 @@ fn if_expr(p: &mut Parser) -> Closed {
     p.close(o, NodeKind::If)
 }
 
-fn let_expr(p: &mut Parser) -> Closed {
-    let o = p.open();
-
-    p.advance(); // let
-
-    if p.peek() == TokenKind::Ident {
-        let ident = p.open();
-        p.advance();
-        p.close(ident, NodeKind::Ident);
-    } else {
-        let span = p.span();
-        p.emit(Diagnostic::error(span, "`let` variable name expected"));
-        p.advance_with_error();
-    }
-
-    if p.peek() == TokenKind::Equal {
-        p.advance();
-    } else {
-        let span = p.span();
-        p.emit(Diagnostic::error(span, "`=` expected after variable name"));
-        p.advance_with_error();
-    }
-
-    expr(p);
-
-    if p.peek() == TokenKind::Newline {
-        p.advance();
-    } else {
-        let span = p.span();
-        p.emit(Diagnostic::error(
-            span,
-            "new line expected after `let` expression",
-        ));
-        p.advance_with_error();
-    }
-
-    expr(p);
-
-    p.close(o, NodeKind::Let)
-}
-
 const PREFIX_TOKENS: TokenKindSet = TokenKindSet::new(&[
     TokenKind::Ident,
     TokenKind::Tag,
diff --git a/crates/rkgk/src/wall/database.rs b/crates/rkgk/src/wall/database.rs
index 3e146c0..8850c9c 100644
--- a/crates/rkgk/src/wall/database.rs
+++ b/crates/rkgk/src/wall/database.rs
@@ -81,11 +81,6 @@ impl Database {
 pub fn start(settings: Settings) -> eyre::Result<Database> {
     let db = Connection::open(settings.path).context("cannot open wall database")?;
 
-    let major: u32 = env!("CARGO_PKG_VERSION_MAJOR").parse().unwrap();
-    let minor: u32 = env!("CARGO_PKG_VERSION_MINOR").parse().unwrap();
-    let patch: u32 = env!("CARGO_PKG_VERSION_PATCH").parse().unwrap();
-    let version = major * 1_000_000 + minor * 1_000 + patch;
-
     info!("initial setup");
 
     let version: u32 = db.pragma_query_value(None, "user_version", |x| x.get(0))?;
@@ -110,7 +105,7 @@ pub fn start(settings: Settings) -> eyre::Result<Database> {
                 paint_area   INTEGER NOT NULL,
                 chunk_size   INTEGER NOT NULL
             );
-        
+
             CREATE TABLE IF NOT EXISTS
             t_wall_info (
                 id         INTEGER PRIMARY KEY CHECK (id = 1),