[IL113] More cleanup

We should not test punctuation with this equality test any more.
Also, whether the suggestion strip is displayed or not, or whether
the hint is displayed or not, has nothing to do with this method
and should be handled elsewhere rather than here -- and as a
matter of fact, it is, which makes this useless.

Bug: 8636060
Change-Id: I6a54ee87e4e9f81bc33158acf4a264c3abd5829d