Let InputMethodUtils not log NameNotFoundException

This is a follow up CL to my previous CL [1], which aimed to
gracefully handle

  PackageManager.NameNotFoundException

thrown from

  PackageManager#getApplicationInfo().

One thing I missed is that showing warnings in logcat is not that
useful and can be confusing, because seeing the full stacktrace often
makes people think something is terribly broken.  However, in our
case, not seeing packages listed in

  R.array.config_disabledUntilUsedPreinstalledImes

is quite expected and never an error.  Let's not log that.

Anyway, this is just about logging and there should be no user visible
behavior change.

  [1]: I58af03ec96103b60e20758558a92dd9408baab2f
       4654609a

Fix: 235281743
Test: Manually verified as follows.
 1. Build "coral-userdebug" and flash it
 2. Complete the setup wizard.
 3. adb logcat -c
 4. adb logcat -s InputMethodUtils:*
 4. On another console, run "adb shell ime reset"
 5. Make sure there is no log.
Change-Id: I61bfb558a18383163ddea59c95f66b7246f30ede