diff --git a/lexer_iterator.cpp b/lexer_iterator.cpp
deleted file mode 100644
index 8c2daa0..0000000
--- a/lexer_iterator.cpp
+++ /dev/null
@@ -1,35 +0,0 @@
-#include "lexer.hpp"
-#include "token.hpp"
-
-namespace dsp {
-
-struct lexer_iterator_t
-{
-  token_t previous_token;
-  token_t current_token;
-  lexer_t& lexer;
-
-  lexer_iterator_t(lexer_t& lexer)
-    : lexer(lexer), previous_token(lexer.scan_token()), current_token(previous_token)
-  {
-  }
-
-  token_t& advance()
-  {
-    previous_token = current_token;
-    current_token = lexer.scan_token();
-    return previous_token;
-  }
-
-  token_t& peek()
-  {
-    return current_token;
-  }
-
-  token_t& previous()
-  {
-    return previous_token;
-  }
-};
-
-}