RFR: 8263080: Obsolete relationship in MulticastSocket API documentation. [v2]

[Daniel Fuchs]

> Now that DatagramSocket has been updated by JDK-8237352 to support joining multicast group, this sentence in the API class level documentation of MulticastSocket is obsolete and should be removed:
> 
> "A MulticastSocket is a (UDP) DatagramSocket, with additional capabilities for
>  joining "groups" of other multicast hosts on the internet." 
>  
>  Not sure whether this requires a CSR. I guess not?

Daniel Fuchs has updated the pull request incrementally with one additional commit since the last revision:

  Improved first sentence

-------------

Changes:
  - all: https://git.openjdk.java.net/jdk/pull/2842/files
  - new: https://git.openjdk.java.net/jdk/pull/2842/files/63e07498..fc6d7b1a

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=2842&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=2842&range=00-01

  Stats: 8 lines in 1 file changed: 6 ins; 0 del; 2 mod
  Patch: https://git.openjdk.java.net/jdk/pull/2842.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/2842/head:pull/2842

PR: https://git.openjdk.java.net/jdk/pull/2842