RFR 8154234: Examine if netdoc Handler can be removed

[vyom]

Hi All,

Please review the following simple fix for the 
issue(https://bugs.openjdk.java.net/browse/JDK-8154234).

     hg rm 
src/java.base/share/classes/sun/net/www/protocol/netdoc/Handler.java

Thanks,
Vyom