Delete internal directory

internal/knowledge/eino_meta_test.go

@@ -1,14 +0,0 @@
-package knowledge
-
-import "testing"
-
-func TestFormatQueryEmbeddingText_AlignsWithIndexPrefix(t *testing.T) {
-	q := FormatQueryEmbeddingText("XSS", "payload")
-	want := FormatEmbeddingInput("XSS", "", "payload")
-	if q != want {
-		t.Fatalf("query embed text mismatch:\n got: %q\nwant: %q", q, want)
-	}
-	if FormatQueryEmbeddingText("", "hello") != "hello" {
-		t.Fatalf("expected bare query without risk type")
-	}
-}