Remove unused classes

Description

org/jivesoftware/openfire/net/ChannelInputStream.java

This package-private class is a) unused and b) redundant due to `java.nio.channels.Channels.newInputStream(ReadableByteChannel)`

InputOutStreamWrapper.java
InternalServerErrorException.java
IOExecutor.java
SSLConfigSocketFactory.java
SelectorAction.java
ServerStanzaHandler.java
SSLJiveTrustManager.java

https://github.com/igniterealtime/Openfire/pull/376
https://github.com/igniterealtime/Openfire/pull/398

Environment

None
Fixed
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Assignee

csh

Reporter

Daryl Herzmann