[router][tool call] Clean up redundant detect_format and has_tool_markers (#11270)

sgl-router/tests/tool_parser_glm4_moe.rs

@@ -117,13 +117,13 @@ fn test_glm4_format_detection() {
     let parser = Glm4MoeParser::new();
 
     // Should detect GLM-4 format
-    assert!(parser.detect_format("<tool_call>"));
-    assert!(parser.detect_format("text with <tool_call> marker"));
+    assert!(parser.has_tool_markers("<tool_call>"));
+    assert!(parser.has_tool_markers("text with <tool_call> marker"));
 
     // Should not detect other formats
-    assert!(!parser.detect_format("[TOOL_CALLS]"));
-    assert!(!parser.detect_format("<｜tool▁calls▁begin｜>"));
-    assert!(!parser.detect_format("plain text"));
+    assert!(!parser.has_tool_markers("[TOOL_CALLS]"));
+    assert!(!parser.has_tool_markers("<｜tool▁calls▁begin｜>"));
+    assert!(!parser.has_tool_markers("plain text"));
 }
 
 #[tokio::test]