Some more simplification

I wish "are we autocorrecting?" was not computed in a dozen
places all depending on a hundred code paths
More than likely, this fixes very subtle discrepancies
between auto-correction indicator with the underline and with
the LED on the spacebar - which is not displayed any more in
the current version anyway. Especially, the LED probably
would have been off when the word was caught by the safety net.

Change-Id: Idda3021771081d6155b06915e728ecd64d9e042e