Move LLNDK related logic to llndk_library

Currently VNDK contains some logic for LLNDK libraries as they are
treated in a similar way with VNDK. However, those logics should stay from
VNDK deprecation. To keep the logic, this change moves LLNDK related
logic into llndk_library.

Bug: 330100430
Test: Soong tests passed
Test: llndk.libraries.txt did not change from CF build
Change-Id: I1d02a3c2a398f1b1060b4f2bdd23af32310503bb
diff --git a/apex/apex_test.go b/apex/apex_test.go
index 3e284b1..1be1048 100644
--- a/apex/apex_test.go
+++ b/apex/apex_test.go
@@ -3671,34 +3671,13 @@
 
 func vndkLibrariesTxtFiles(vers ...string) (result string) {
 	for _, v := range vers {
-		if v == "current" {
-			for _, txt := range []string{"vndkcore", "vndksp", "vndkprivate", "vndkproduct"} {
-				result += `
-					` + txt + `_libraries_txt {
-						name: "` + txt + `.libraries.txt",
-						insert_vndk_version: true,
-					}
-				`
-			}
+		for _, txt := range []string{"llndk", "vndkcore", "vndksp", "vndkprivate", "vndkproduct"} {
 			result += `
-				llndk_libraries_txt {
-					name: "llndk.libraries.txt",
-				}
-				llndk_libraries_txt_for_apex {
-					name: "llndk.libraries.txt.apex",
-					stem: "llndk.libraries.txt",
-					insert_vndk_version: true,
-				}
-			`
-		} else {
-			for _, txt := range []string{"llndk", "vndkcore", "vndksp", "vndkprivate", "vndkproduct"} {
-				result += `
 					prebuilt_etc {
 						name: "` + txt + `.libraries.` + v + `.txt",
 						src: "dummy.txt",
 					}
 				`
-			}
 		}
 	}
 	return