tests: remove no covers

src/handlers.py

@@ -97,17 +97,12 @@ class BaseHandler(abc.ABC, http.server.BaseHTTPRequestHandler):
         content_type: str = "text/plain",
         code: int = http.HTTPStatus.OK,
         message: str | None = None,
-        headers: dict[str, str] | None = None,
     ) -> None:
-        if headers is None:
-            headers = {}
         encoded: bytes = body.encode()
         self.out_size = len(encoded)
         self.send_response(code, message)
         self.send_header("Content-Type", f"{content_type}; charset=UTF-8")
         self.send_header("Content-Length", str(len(encoded)))
-        for header, value in headers.items():
-            self.send_header(header, value)  # pragma: no cover
         self.end_headers()
         self.wfile.write(encoded)
         self.close_connection = True