Revert "Disable IME to allow receiving all keys"
    
    This reverts commit 191f9a8ab49f56aa48781b5eeaa4a1a65d626627.
    
    This fixes https://bugzilla.redhat.com/show_bug.cgi?id=1342984.
    
    Calling ImmDisableIME disable IME for the entire program.
    On Windows 7 this also hide the keyboard application from the task bar
    making impossible to switch keyboard while using remote viewer.
    A recent commit in spice-gtk (7d881d2193bf5598b888a48bb4d8d7ad2e62f443,
    "widget: Disable IME context on display widget") disable IME processing
    just for SpiceDisplay. This avoid the above regression on Windows 7.
    
    Not having this spice-gtk commit is not going to cause a huge
    regression, so it's fine not to add strong coupling between this
    commit and the spice-gtk commit which fixes this differently.
    
    Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
    Acked-by: Christophe Fergeau <cfergeau@redhat.com>