Remove code separating out command and message text
Remove code separating out command and message text

Remove logic for extracting message text from command text contained in
the same message. The original purpose for distinguishing between the
two kinds of text was to exclude commands from the sentiment analysis.
Additionally, messages containing only commands would be excluded from
the set of most recent messages on which the Psycho-Pass is based. Thus,
messages containing only commands would not bump out real messages.

The reason for removing this logic is to simplify the process of
fetching messages on-demand from Slack. The number of desired messages
is known, however if some of the fetched messages must be filtered out
because they contain only commands, then this creates a scenario where
it is necessary to iteratively request multiple pages of messages until
either enough real messages have been fetched or there are no more
relevant messages.

While arguably more robust, this approach overcomplicates the process of
fetching messages from Slack while having insignificant benefits.
Preventing messages containing only commands from bumping out real
messages would only apply to commands known by Sibyl. It would not
filter out commands for Slack or other apps. Thus, the behavior is not
entirely intuitive. Furthermore, only one of the six commands currently
supported by the parseCommand function produces a non-zero score under
sentiment analysis. This is the 'psychopass help' command which results
in a score of two. Including this score in the calculation of a
Psycho-Pass would not have an overwhelming effect.

Thus, the code separating out message text from command text has been
removed.

fvgs/Sibyl