Use new `metalava signature-to-jdiff` sub-command

Also, removes `--no-banner` as it is deprecated and `--format=v2` is
unnecessary.

Bug: 290825755
Test: m current-api-xml
(cherry picked from https://android-review.googlesource.com/q/commit:aab881d8b7ebea74266039275d0f5bf7019e1a5b)
Merged-In: Ib2ff55cf2bfd2128866b2e4f67cf39303135b79b
Change-Id: Ib2ff55cf2bfd2128866b2e4f67cf39303135b79b
Bug: 299428102

api/Android.bp

@@ -60,14 +60,14 @@ python_test_host {
 metalava_cmd = "$(location metalava)"
 // Silence reflection warnings. See b/168689341
 metalava_cmd += " -J--add-opens=java.base/java.util=ALL-UNNAMED "
-metalava_cmd += " --quiet --no-banner --format=v2 "
+metalava_cmd += " --quiet "
 
 genrule {
     name: "current-api-xml",
     tools: ["metalava"],
     srcs: [":frameworks-base-api-current.txt"],
     out: ["current.api"],
-    cmd: metalava_cmd + "-convert2xmlnostrip $(in) $(out)",
+    cmd: metalava_cmd + "signature-to-jdiff $(in) $(out)",
     visibility: ["//visibility:public"],
 }