Revert PR #24600 (for JDK-8354447) from this branch so it's not a dependency.

test/langtools/tools/javac/danglingDocComments/DanglingDocCommentsClass.java

@@ -45,13 +45,4 @@ public /** Misplaced: after mods. */ class DanglingDocCommentsClass /** Misplace
         /** Good comment. */
         int i = 0;
     }
-
-    /** Dangling comment X */
-
-    /**
-     * The {@code @SuppressWarnings} annotation below retroactively
-     * silences the warning about "Dangling comment X".
-     */
-    @SuppressWarnings("dangling-doc-comments")
-    public void m5() { }
-}
+}