Remove usages of java_api_finder

This errorprone checker is no longer used.

Bug: 260268418
Test: Presubmits
Change-Id: If06ccbcb6c549f688b165d83817ebee304f018cd
diff --git a/Android.bp b/Android.bp
index 7bf7272..086f89f 100644
--- a/Android.bp
+++ b/Android.bp
@@ -276,8 +276,6 @@
         "android.net.ssl",
         "com.android.org.conscrypt",
     ],
-
-    plugins: ["java_api_finder"],
 }
 
 // Java library for use on host, e.g. by robolectric.