perf: Major event processing system refactor for improved performance

src/streaming/event_parser/common/utils.rs

@@ -13,15 +13,6 @@ pub fn extract_discriminator(length: usize, data: &[u8]) -> Option<(&[u8], &[u8]
     Some((&data[..length], &data[length..]))
 }
 
-/// 检查鉴别器是否匹配 - 优化版本
-pub fn discriminator_matches(data: &str, expected: &str) -> bool {
-    if data.len() < expected.len() {
-        return false;
-    }
-    // 使用字节比较而不是字符串比较，更高效
-    data.as_bytes().starts_with(expected.as_bytes())
-}
-
 /// 从日志中提取程序数据
 pub fn extract_program_data(log: &str) -> Option<&str> {
     const PROGRAM_DATA_PREFIX: &str = "Program data: ";