Revert "ios: disable run button while an application is running"

This reverts commit 96ecfb9e4a500837e048cf29a89fe52d31ec1db9

device changes at the moment do not trigger projectexplorer's slotUpdateRunActions so this reduces the usability if one starts out without device.

Change-Id: I9fc4ba14ce45d5000d0a8af5c06e0ca9b3080d86
Reviewed-by: Fawzi Mohamed <fawzi.mohamed@digia.com>
ios: ensure that simulator is always redy to use

Change-Id: Idafe728642e8c0c0637b8793e912178fdc011aa0
Reviewed-by: Fawzi Mohamed <fawzi.mohamed@digia.com>