Fix test using LAYOUT_CREATE_INDEPENDENT_SETS_BIT
Original test plan for testing VK_EXT_graphics_pipeline_library had
one test that actually doesn't require pipeline library extension.
This test wrongfully created pipeline layout using
VK_PIPELINE_LAYOUT_CREATE_INDEPENDENT_SETS_BIT_EXT flag
violating VUID-VkPipelineLayoutCreateInfo-flags-parameter.
Components: Vulkan
VK-GL-CTS issue: 3704
Affects:
dEQP-VK.pipeline.pipeline_library.graphics_library.*
Change-Id: I6842fcfd7dd686af32f989cd1b0fcd2730305d9e