Squish: Disable pastebin.ca for now

Pastebin.ca has issues which make this test unreliable.

Change-Id: Idae581822d9c2555e57fd91f5b1ae044666cdc4c
Reviewed-by: Christian Stenger <christian.stenger@digia.com>
Squish: Add workaround to test_QMLS03

Task-number: QTCREATORBUG-11984
Change-Id: I4be9d605ee1f95f463fd0a16cb9b379949751203
Reviewed-by: Christian Stenger <christian.stenger@digia.com>
QmlDesigner: Remove unused variable

Change-Id: Ia8803c99a936bc85b93aa0bfe019257b8f8f0135
Reviewed-by: Alessandro Portale <alessandro.portale@digia.com>
Reviewed-by: Marco Bubke <marco.bubke@digia.com>