hg: jdk/sandbox: 8203792: Remove "compatibility" features from Head.java

[chris.hegarty at oracle.com]

Changeset: d48a852983eb
Author:    pmuthuswamy
Date:      2018-08-21 11:41 +0530
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/d48a852983eb

8203792: Remove "compatibility" features from Head.java
Reviewed-by: jjg, sundar

! src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/formats/html/FrameOutputWriter.java
! src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/formats/html/IndexRedirectWriter.java
! src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/formats/html/markup/Head.java
+ test/langtools/jdk/javadoc/doclet/testHeadTag/TestHeadTag.java