When the command line was processed to remove the call itself, it would
not be removed correctly if it was quoted because it would not see the
first quote.

Task-number: QTCREATORBUG-7656

Change-Id: I016b1534e14563ddd8cadad8c0effcd6b4a9203b
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@nokia.com>